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Copy pathAH_RockUtils.c
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AH_RockUtils.c
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/*******************************************************************************
* AH_utils.c - Andres Huertas - Various utilities, including I/O
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <assert.h>
#include "AH_RockUtils.h"
#include "AH_RockModel.h"
#include "PGM.h"
#ifdef _OPENMP
#include <omp.h>
#endif
//settings (#define to prevent openmp shared variables
//subImageCols: original: tcols
//subImageRows: original: trows
#define forcedOverlap 50
#define tcols 500
#define trows 500
//needed to make vc compiler (windows) results emulate the rounding behavior seen in the linux gcc compiler
float RoundToNearestTieToEven(float in, int precisionDigits)
{
double moveDecimals = pow(10, precisionDigits);
double result = rint(in * moveDecimals);
result /= moveDecimals;
return (float)result;
}
const double ROCKLIST_FILE_VERSION = 2.0;
int write_rocklist_header(FILE* fp_out, RD_PARMS* rd_parms)
{
fprintf(fp_out, "version %f\n", ROCKLIST_FILE_VERSION);
fprintf(fp_out, "%%GSD_resolution %f\n", rd_parms->ground_resolution);
fprintf(fp_out, "%%gamma %f\n", rd_parms->gamma);
fprintf(fp_out, "%%sun_azimuth_angle %f\n", rd_parms->sun_azimuth_angle);
fprintf(fp_out, "%%sun_incidence_angle %f\n", rd_parms->sun_incidence_angle);
fprintf(fp_out, "%%min_shadow_size %f\n", rd_parms->min_shadow_size);
fprintf(fp_out, "%%max_shadow_size %f\n", rd_parms->max_shadow_size);
fprintf(fp_out, "%%confidence_threshold %f\n", rd_parms->confidence_threshold);
fprintf(fp_out, "%%min_split_shadow_size %f\n", rd_parms->min_shadow_size_split);
fprintf(fp_out, "%%mean_gradient %f\n", rd_parms->mean_gradient_threshold);
fprintf(fp_out, "%%shadow excentricity %f\n", rd_parms->rock_elongate_ratio);
fprintf(fp_out, "%%gamma_threshold_override %d\n", rd_parms->gamma_threshold_override);
fprintf(fp_out, "id, tileR, tileC, shaX, shaY, rockX, rockY, tileShaX, tileShaY, shaArea, shaLen, rockWidth, rockHeight, score, gradMean, Compact, Exent, Class, gamma\n");
fflush(stdout);
return 1;
}
int read_rocklist_header_v1(FILE* fp_in, RD_PARMS* rd_parms)
{
int read = 0;
memset(rd_parms, 0, sizeof(RD_PARMS));
rd_parms->spliting_ratio = RD_ROCK_SPLITING_RATIO; //initialize to default
read = fscanf(fp_in, "%%GSD_resolution %f\n", &rd_parms->ground_resolution);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%gamma %f\n", &rd_parms->gamma);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%sun_azimuth_angle %f\n", &rd_parms->sun_azimuth_angle);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%sun_incidence_angle %f\n", &rd_parms->sun_incidence_angle);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%min_shadow_size %f\n", &rd_parms->min_shadow_size);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%max_shadow_size %f\n", &rd_parms->max_shadow_size);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%confidence_threshold %f\n", &rd_parms->confidence_threshold);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%min_split_shadow_size %f\n", &rd_parms->min_shadow_size_split);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%mean_gradient %f\n", &rd_parms->mean_gradient_threshold);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%shadow excentricity %f\n", &rd_parms->rock_elongate_ratio);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%gamma_threshold_override %d\n", &rd_parms->gamma_threshold_override);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "id, tileR, tileC, shaX, shaY, rockX, rockY, tileShaX, tileShaY, shaArea, shaLen, rockWidth, rockHeight, score, gradMean, Compact, Exent, Class, gamma\n");
if (read != 0) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
//enforce file precision
rd_parms->ground_resolution = RoundToNearestTieToEven(rd_parms->ground_resolution, 6);
rd_parms->gamma = RoundToNearestTieToEven(rd_parms->gamma, 6);
rd_parms->sun_azimuth_angle = RoundToNearestTieToEven(rd_parms->sun_azimuth_angle, 6);
rd_parms->sun_incidence_angle = RoundToNearestTieToEven(rd_parms->sun_incidence_angle, 6);
rd_parms->min_shadow_size = RoundToNearestTieToEven(rd_parms->min_shadow_size, 6);
rd_parms->max_shadow_size = RoundToNearestTieToEven(rd_parms->max_shadow_size, 6);
rd_parms->confidence_threshold = RoundToNearestTieToEven(rd_parms->confidence_threshold, 6);
rd_parms->min_shadow_size_split = RoundToNearestTieToEven(rd_parms->min_shadow_size_split, 6);
rd_parms->mean_gradient_threshold = RoundToNearestTieToEven(rd_parms->mean_gradient_threshold, 6);
rd_parms->rock_elongate_ratio = RoundToNearestTieToEven(rd_parms->rock_elongate_ratio, 6);
return TRUE;
}
int read_rocklist_header(FILE* fp_in, RD_PARMS* rd_parms)
{
int read = 0;
float version = 0;
read = fscanf(fp_in, "version %f\n", &version);
if (read != 1)
{
fseek(fp_in, 0, SEEK_SET);
return read_rocklist_header_v1(fp_in, rd_parms);
}
memset(rd_parms, 0, sizeof(RD_PARMS));
rd_parms->spliting_ratio = RD_ROCK_SPLITING_RATIO; //initialize to default
read = fscanf(fp_in, "%%GSD_resolution %f\n", &rd_parms->ground_resolution);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%gamma %f\n", &rd_parms->gamma);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%sun_azimuth_angle %f\n", &rd_parms->sun_azimuth_angle);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%sun_incidence_angle %f\n", &rd_parms->sun_incidence_angle);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%min_shadow_size %f\n", &rd_parms->min_shadow_size);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%max_shadow_size %f\n", &rd_parms->max_shadow_size);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%confidence_threshold %f\n", &rd_parms->confidence_threshold);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%min_split_shadow_size %f\n", &rd_parms->min_shadow_size_split);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%mean_gradient %f\n", &rd_parms->mean_gradient_threshold);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%shadow excentricity %f\n", &rd_parms->rock_elongate_ratio);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "%%gamma_threshold_override %d\n", &rd_parms->gamma_threshold_override);
if (read != 1) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
read = fscanf(fp_in, "id, tileR, tileC, shaX, shaY, rockX, rockY, tileShaX, tileShaY, shaArea, shaLen, rockWidth, rockHeight, score, gradMean, Compact, Exent, Class, gamma\n");
if (read != 0) { printf("error reading file. quitting. \n"); fclose(fp_in); return FALSE; }
//enforce file precision
rd_parms->ground_resolution = RoundToNearestTieToEven(rd_parms->ground_resolution, 6);
rd_parms->gamma = RoundToNearestTieToEven(rd_parms->gamma, 6);
rd_parms->sun_azimuth_angle = RoundToNearestTieToEven(rd_parms->sun_azimuth_angle, 6);
rd_parms->sun_incidence_angle = RoundToNearestTieToEven(rd_parms->sun_incidence_angle, 6);
rd_parms->min_shadow_size = RoundToNearestTieToEven(rd_parms->min_shadow_size, 6);
rd_parms->max_shadow_size = RoundToNearestTieToEven(rd_parms->max_shadow_size, 6);
rd_parms->confidence_threshold = RoundToNearestTieToEven(rd_parms->confidence_threshold, 6);
rd_parms->min_shadow_size_split = RoundToNearestTieToEven(rd_parms->min_shadow_size_split, 6);
rd_parms->mean_gradient_threshold = RoundToNearestTieToEven(rd_parms->mean_gradient_threshold, 6);
rd_parms->rock_elongate_ratio = RoundToNearestTieToEven(rd_parms->rock_elongate_ratio, 6);
return TRUE;
}
void rock_to_out_rock(int id, float elongate_ratio, float gamma, ROCK* rock, OUTROCK* out_rock)
{
assert(rock->flag != 0);
int hazClass = 1; //unused
int start_col = tcols * rock->tile_col;
int start_row = trows * rock->tile_row;
double r = sqrt(rock->size / 3.1415926);
double compact = r * 3.1415926 * 2 / rock->perimeter;
double aratio = elongate_ratio;
assert(rock->rock_minor >= 0);
if (rock->rock_minor > 0)
{
aratio = rock->rock_major / rock->rock_minor;
}
out_rock->id = id;
out_rock->tileR = rock->tile_row;
out_rock->tileC = rock->tile_col;
out_rock->shaX = RoundToNearestTieToEven(start_col + rock->x0, 1);
out_rock->shaY = RoundToNearestTieToEven(start_row + rock->y0, 1);
out_rock->rockX = RoundToNearestTieToEven(start_col + rock->start[0], 1);
out_rock->rockY = RoundToNearestTieToEven(start_row + rock->start[1], 1);
out_rock->tileShaX = RoundToNearestTieToEven(rock->x0, 1);
out_rock->tileShaY = RoundToNearestTieToEven(rock->y0, 1);
out_rock->shaArea = rock->size;
out_rock->shaLen = RoundToNearestTieToEven(rock->shadowLength_modeled, 2);
out_rock->rockWidth = RoundToNearestTieToEven(rock->rock_width_modeled, 2);
out_rock->rockHeight = RoundToNearestTieToEven(rock->rock_height_modeled, 2);
out_rock->score = RoundToNearestTieToEven(rock->confidence, 4);
out_rock->gradMean = RoundToNearestTieToEven(rock->mean_g, 4);
out_rock->Compact = RoundToNearestTieToEven((float)compact, 5);
out_rock->Exent = RoundToNearestTieToEven((float)aratio, 5);
out_rock->Class = hazClass;
out_rock->gamma = RoundToNearestTieToEven(gamma, 4);
}
int write_tile_rocks(ROCK* rocks, int maxlab, RD_PARMS* rd_parms,
unsigned short* CC, int* gid,
FILE* fp_out, FILE* fp_shadowPixels)
{
for (int m = 0; m < maxlab; ++m)
{
if (rocks[m].flag == 0)
continue;
int start_row = rocks[m].tile_row * trows;
int start_col = rocks[m].tile_col * tcols;
OUTROCK out_rock;
rock_to_out_rock(*gid, rd_parms->rock_elongate_ratio, rd_parms->gamma, &rocks[m], &out_rock);
fprintf(fp_out, "%8d, %3d, %3d, %7.1f, %7.1f, %7.1f, %7.1f, %6.1f, %6.1f, %5d, %6.2f, %6.2f, %6.2f, %6.4f, %6.4f, %6.5f, %6.5f, %3d, %6.4f\n",
out_rock.id, out_rock.tileR, out_rock.tileC, out_rock.shaX, out_rock.shaY, out_rock.rockX, out_rock.rockY,
out_rock.tileShaX, out_rock.tileShaY, out_rock.shaArea, out_rock.shaLen, out_rock.rockWidth,
out_rock.rockHeight, out_rock.score, out_rock.gradMean, out_rock.Compact, out_rock.Exent, out_rock.Class,
out_rock.gamma);
//write shadow pixel file
if (fp_shadowPixels != NULL)
{
fprintf(fp_shadowPixels, "%d: ", *gid);
int pixelsMarked = 0;
for (int idxRow = rocks[m].ymin; idxRow <= rocks[m].ymax; idxRow++)
{
for (int idxCol = rocks[m].xmin; idxCol <= rocks[m].xmax; idxCol++)
{
if (CC[idxRow * tcols + idxCol] == m)
{
if (pixelsMarked != 0)
fprintf(fp_shadowPixels, ", ");
fprintf(fp_shadowPixels, "%d %d", idxCol + start_col, idxRow + start_row);
pixelsMarked++;
}
}
}
fprintf(fp_shadowPixels, "\n");
}
*gid = *gid + 1;
}
return 1;
}
// rebuilds a partially complete parameters structure and a partially complete rocklist using the data contained in the rocklist file
// it is not possible to rebuild a majority of the ROCK or RD_PARMS structure values from the data
// persisted into the rocklist file
int read_rocklist(char* rockListPath, RD_PARMS* rd_parms, OUTROCK** out_rocks, int* numRocks)
{
char tmp[1024];
//read params
FILE* fp_in;
fp_in = fopen(rockListPath, "r");
if (fp_in == NULL)
{
snprintf(tmp, 1024, "cannot open the rock list %s to read\n", rockListPath);
fputs(tmp, stderr);
return FALSE;
}
if(FALSE == read_rocklist_header(fp_in,rd_parms))
{
snprintf(tmp, 1024, "cannot read the rock list header for %s\n", rockListPath);
fputs(tmp, stderr);
return FALSE;
}
//read rocklist
int maxRocklistRocks = MAXLAB;
*out_rocks = (OUTROCK*)malloc(sizeof(OUTROCK) * maxRocklistRocks);
OUTROCK out_rock;
*numRocks = 0;
int read = 0;
while (EOF != (read = fscanf(fp_in, "%d, %d, %d, %f, %f, %f, %f, %f, %f, %d, %f, %f, %f, %f, %f, %f, %f, %d, %f\n",
&out_rock.id, &out_rock.tileR, &out_rock.tileC, &out_rock.shaX, &out_rock.shaY, &out_rock.rockX, &out_rock.rockY,
&out_rock.tileShaX, &out_rock.tileShaY, &out_rock.shaArea, &out_rock.shaLen, &out_rock.rockWidth,
&out_rock.rockHeight, &out_rock.score, &out_rock.gradMean, &out_rock.Compact, &out_rock.Exent, &out_rock.Class,
&out_rock.gamma)))
{
if (read != 19)
{
printf("error reading file at rock %d. Quitting \n", *numRocks);
free(*out_rocks);
*out_rocks = NULL;
fclose(fp_in);
return FALSE;
}
if(*numRocks >= maxRocklistRocks)
{
maxRocklistRocks *= 2;
OUTROCK* biggerRocks = (OUTROCK*)realloc(*out_rocks, sizeof(OUTROCK) * maxRocklistRocks);
if (biggerRocks == NULL)
{
printf("error growing the size of the rocklist. Quitting \n");
free(*out_rocks);
*out_rocks = NULL;
fclose(fp_in);
return FALSE;
}
*out_rocks = biggerRocks;
}
//enforce file precision
out_rock.shaX = RoundToNearestTieToEven(out_rock.shaX, 1);
out_rock.shaY = RoundToNearestTieToEven(out_rock.shaY, 1);
out_rock.rockX = RoundToNearestTieToEven(out_rock.rockX, 1);
out_rock.rockY = RoundToNearestTieToEven(out_rock.rockY, 1);
out_rock.tileShaX = RoundToNearestTieToEven(out_rock.tileShaX, 1);
out_rock.tileShaY = RoundToNearestTieToEven(out_rock.tileShaY, 1);
out_rock.shaLen = RoundToNearestTieToEven(out_rock.shaLen, 2);
out_rock.rockWidth = RoundToNearestTieToEven(out_rock.rockWidth, 2);
out_rock.rockHeight = RoundToNearestTieToEven(out_rock.rockHeight, 2);
out_rock.score = RoundToNearestTieToEven(out_rock.score, 4);
out_rock.gradMean = RoundToNearestTieToEven(out_rock.gradMean, 4);
out_rock.Compact = RoundToNearestTieToEven(out_rock.Compact, 5);
out_rock.Exent = RoundToNearestTieToEven(out_rock.Exent, 5);
out_rock.gamma = RoundToNearestTieToEven(out_rock.gamma, 4);
memcpy(&(*out_rocks)[*numRocks], &out_rock, sizeof(OUTROCK));
*numRocks = *numRocks + 1;
}
fclose(fp_in);
return TRUE;
}
int compare_rocklists(RD_PARMS* parms0, OUTROCK* rocks0, int numRocks0,
RD_PARMS* parms1, OUTROCK* rocks1, int numRocks1, int ignoreId)
{
if (numRocks0 != numRocks1)
{
return FALSE;
}
if (0 != memcmp(parms0, parms1, sizeof(RD_PARMS)))
{
return FALSE;
}
int matched = 0;
if (ignoreId)
{
for (int idxRock0 = 0; idxRock0 < numRocks0; idxRock0++)
{
int foundMatch = 0;
for (int idxRock1 = 0; idxRock1 < numRocks1; idxRock1++)
{
if ((rocks0[idxRock0].tileC != rocks1[idxRock1].tileC) ||
(rocks0[idxRock0].tileR != rocks1[idxRock1].tileR))
{
continue;
}
if ((rocks0[idxRock0].shaX == rocks1[idxRock1].shaX) &&
(rocks0[idxRock0].shaY == rocks1[idxRock1].shaY) &&
(rocks0[idxRock0].rockX == rocks1[idxRock1].rockX) &&
(rocks0[idxRock0].rockY == rocks1[idxRock1].rockY) &&
(rocks0[idxRock0].tileShaX == rocks1[idxRock1].tileShaX) &&
(rocks0[idxRock0].tileShaY == rocks1[idxRock1].tileShaY) &&
(rocks0[idxRock0].shaArea == rocks1[idxRock1].shaArea) &&
(rocks0[idxRock0].shaLen == rocks1[idxRock1].shaLen) &&
(rocks0[idxRock0].rockWidth == rocks1[idxRock1].rockWidth) &&
(rocks0[idxRock0].rockHeight == rocks1[idxRock1].rockHeight) &&
(rocks0[idxRock0].score == rocks1[idxRock1].score) &&
(rocks0[idxRock0].gradMean == rocks1[idxRock1].gradMean) &&
(rocks0[idxRock0].Compact == rocks1[idxRock1].Compact) &&
(rocks0[idxRock0].Exent == rocks1[idxRock1].Exent) &&
(rocks0[idxRock0].Class == rocks1[idxRock1].Class) &&
(rocks0[idxRock0].gamma == rocks1[idxRock1].gamma))
{
foundMatch = 1;
break;
}
}
if (foundMatch == 1)
matched++;
}
}
else
{
for (int idxRock0 = 0; idxRock0 < numRocks0; idxRock0++)
{
for (int idxRock1 = 0; idxRock1 < numRocks1; idxRock1++)
{
if (0 == memcmp(&rocks0[idxRock0], &rocks1[idxRock1], sizeof(OUTROCK)))
{
matched++;
break;
}
}
}
}
if (matched != numRocks0)
{
return FALSE;
}
return TRUE;
}
//returns whether two rocklists match
int compare_rocklist_files(char* rocklist0, char* rocklist1, int ignoreId)
{
char tmp[1024];
int numRocks0 = 0;
OUTROCK* rocks0 = NULL;
RD_PARMS parms0;
memset(&parms0, 0, sizeof(RD_PARMS));
if (FALSE == read_rocklist(rocklist0, &parms0, &rocks0, &numRocks0))
{
snprintf(tmp, 1024, "Failed to read rocklist %s\n", rocklist0);
fputs(tmp, stderr);
free(rocks0);
return FALSE;
}
int numRocks1 = 0;
OUTROCK* rocks1 = NULL;
RD_PARMS parms1;
memset(&parms1, 0, sizeof(RD_PARMS));
if (FALSE == read_rocklist(rocklist1, &parms1, &rocks1, &numRocks1))
{
snprintf(tmp, 1024, "Failed to read rocklist %s\n", rocklist1);
fputs(tmp, stderr);
free(rocks0);
free(rocks1);
return FALSE;
}
int result = compare_rocklists(&parms0, rocks0, numRocks0,
&parms1, rocks1, numRocks1, ignoreId);
free(rocks0);
free(rocks1);
return result;
}
int detect_tile(char* inputImagePath, unsigned short* labelImg, unsigned char* subimg,
int tRow, int tCol, int frows, int fcols, int nbr, int nbc,
RD_PARMS* params, ROCK* rocks, int* maxlab)
{
int start_col = tCol * tcols;
int end_col = start_col + tcols + forcedOverlap - 1;
int start_row = tRow * trows;
int end_row = start_row + trows + forcedOverlap - 1;
if (start_col < 0) start_col = 0;
if (start_row < 0) start_row = 0;
if (end_row >= frows) end_row = frows - 1;
if (end_col >= fcols) end_col = fcols - 1;
int cols = end_col - start_col + 1;
int rows = end_row - start_row + 1;
if (0 == read_pgm_image_rect(inputImagePath, subimg, start_row, start_col, rows, cols))
{
printf("failed to read sub-image (row, col) (%d,%d)\n", tRow, tCol);
return 0;
}
for (int m = 0; m < MAXLAB; m++)
{
clear_rock(&rocks[m]);
}
*maxlab = 0;
if (0 == RockDetection(subimg, cols, rows, *params, rocks, maxlab, labelImg))
{
printf("rock detection failed, sub-image (row, col) (%d,%d)\n", tRow, tCol);
return 0;
}
for (int m = 0; m < *maxlab; ++m)
{
rocks[m].tile_col = tCol;
rocks[m].tile_row = tRow;
}
for (int m = 0; m < *maxlab; ++m)
{
if (rocks[m].flag == 0)
continue;
//remove anything in 0-50 row except these cross row 50
if (tRow > 0 && rocks[m].ymax < forcedOverlap - 1)
{
rocks[m].flag = 0;
}
//remove anything in 0-50 col except these cross col 50
else if (tCol > 0 && rocks[m].xmax < forcedOverlap - 1)
{
rocks[m].flag = 0;
}
//remove any rock connected to the bottom row
else if (tRow < nbr - 1 && rocks[m].ymax >= rows - 1)
{
rocks[m].flag = 0;
}
//remove any rock connected to the right col
else if (tCol < nbc - 1 && rocks[m].xmax >= cols - 1)
{
rocks[m].flag = 0;
}
}
return 1;
}
int detect_per_tile_settings(char* inputImagePath, char* outputRockListPath, int numSettings, RD_PARMS* settingsArray)
{
if (settingsArray == NULL)
{
return 0;
}
if (outputRockListPath == NULL)
return 0;
char tmp[1024];
FILE* fp_out = fopen(outputRockListPath, "w");
if (fp_out == NULL)
{
snprintf(tmp, 1024, "cannot open the rkfile %s to write\n", outputRockListPath);
fputs(tmp, stderr);
return 0;
}
RD_PARMS params;
params.gamma = 0.0f;
params.sun_incidence_angle = 0.0f;
params.sun_azimuth_angle = 0.0f;
params.min_shadow_size = 0.0f;
params.ground_resolution = 0.0f;
params.confidence_threshold = 0.0f;
params.min_shadow_size_split = 0.0f;
params.spliting_ratio = 0.0f;
params.rock_elongate_ratio = 0.0f;
params.mean_gradient_threshold = 0.0f;
params.max_shadow_size = 0.0f;
params.gamma_threshold_override = 0;
if (numSettings > 0) {
RD_PARMS* first = NULL;
int all_same = 1;
for (int i = 0; i < numSettings; i++) {
RD_PARMS* p = &settingsArray[i];
if (p->max_shadow_size <= 0) continue;
if (first == NULL) first = p;
else if (p->gamma != first->gamma ||
p->sun_incidence_angle != first->sun_incidence_angle ||
p->sun_azimuth_angle != first->sun_azimuth_angle ||
p->min_shadow_size != first->min_shadow_size ||
p->ground_resolution != first->ground_resolution ||
p->confidence_threshold != first->confidence_threshold ||
p->min_shadow_size_split != first->min_shadow_size_split ||
p->spliting_ratio != first->spliting_ratio ||
p->rock_elongate_ratio != first->rock_elongate_ratio ||
p->mean_gradient_threshold != first->mean_gradient_threshold ||
p->max_shadow_size != first->max_shadow_size ||
p->gamma_threshold_override != first->gamma_threshold_override) {
// this tile has different settings per tile, can't write a meaningful header
all_same = 0;
break;
}
}
if (all_same && first != NULL) {
printf("All tiles have same settings.\n");
params = *first;
}
}
write_rocklist_header(fp_out, ¶ms);
//intialize rock pixel output file
char outputPixelPath[1024];
snprintf(outputPixelPath, 1024, "%s.ShadowPixels.txt", outputRockListPath);
FILE* outputPixelFile = fopen(outputPixelPath, "w");
if (outputPixelFile == NULL)
{
snprintf(tmp, 1024, "Error opening the output pixel file %s to write\n", outputPixelPath);
fputs(tmp, stderr);
return 0;
}
if (VERBOSE)
{
snprintf(tmp, 1024, "Reading the Scene image... %s.\n", inputImagePath);
fputs(tmp, stdout);
}
int fcols, frows;
if (read_pgm_image_dimensions(inputImagePath, &frows, &fcols) == 0)
{
snprintf(tmp, 1024, "Error reading input image, %s.\n", inputImagePath);
fputs(tmp, stderr);
return 0;
}
int nbc = fcols / tcols;
int nbr = frows / trows;
if (nbc * tcols < fcols) nbc += 1;
if (nbr * trows < frows) nbr += 1;
printf("Image size (rows, cols) (%d, %d) pixels, (%d, %d) tiles, tile size (%d, %d)\n",
frows, fcols, nbr, nbc, trows, tcols);
if (numSettings != nbc * nbr)
{
snprintf(tmp, 1024, "Error: incorrect number of tile settings for image %s, expected %d, got %d.\n",
inputImagePath, nbc * nbr, numSettings);
fputs(tmp, stderr);
return 0;
}
int gid = 1;
int completed_trows = 0;
static ROCK* rocks = NULL;
#pragma omp threadprivate(rocks)
static unsigned char* subimg = NULL;
#pragma omp threadprivate(subimg)
static unsigned short* labelImg = NULL;
#pragma omp threadprivate(labelImg)
int tRow = 0;
int success = 1;
#pragma omp parallel for //num_threads(1) //single threaded
for (tRow = 0; tRow < nbr; tRow++)
{
if (subimg == NULL)
{
subimg = (unsigned char*)malloc(sizeof(char) * (tcols + forcedOverlap) * (trows + forcedOverlap));
}
if (rocks == NULL)
{
rocks = (ROCK*)malloc(sizeof(ROCK) * (MAXLAB));
}
if (labelImg == NULL)
{
labelImg = (unsigned short*)malloc(sizeof(unsigned short) * (tcols + forcedOverlap) * (trows + forcedOverlap));
}
for (int tCol = 0; tCol < nbc; tCol++)
{
int tileIndex = tRow * nbc + tCol;
RD_PARMS* curParms = &settingsArray[tileIndex];
if (curParms->max_shadow_size <= 0) continue;
int maxlab = 0;
int tileSuccess = 0;
if (0 == (tileSuccess = detect_tile(inputImagePath, labelImg, subimg, tRow, tCol, frows, fcols,
nbr, nbc, curParms, rocks, &maxlab)))
{
printf("failed to detect tile %d %d (row, col)\n", tRow, tCol);
continue;
}
#pragma omp critical
{
success |= tileSuccess;
//save rocks to rocklist file
write_tile_rocks(rocks, maxlab, curParms, labelImg, &gid,
fp_out, outputPixelFile);
}
}
free(labelImg);
labelImg = NULL;
free(rocks);
rocks = NULL;
free(subimg);
subimg = NULL;
#pragma omp atomic
completed_trows++;
int cur_progress = (int)(completed_trows / (float)nbr * 100) % 10;
if (cur_progress == 0)
{
printf("Completed: %d%%\n", (int)(completed_trows / (float)nbr * 100));
}
}
fclose(fp_out);
fclose(outputPixelFile);
printf("Completed: %d%%\n", 100);
snprintf(tmp, 1024, "Saved rock list to %s\n", outputRockListPath);
fputs(tmp, stdout);
snprintf(tmp, 1024, "Saved rock pixels to %s\n", outputPixelPath);
fputs(tmp, stdout);
fflush(stdout);
return success;
}
int detect_tile_rocks(char* inputImagePath, unsigned short* labelImg, unsigned char* subimg,
int tRow, int tCol, int frows, int fcols, int nbr, int nbc,
RD_PARMS* params, OUTROCK* outRocks, int* maxlab)
{
ROCK* rocks = (ROCK*)malloc(sizeof(ROCK) * MAXLAB);
int detectedRocks = 0;
int success = detect_tile(inputImagePath, labelImg, subimg,
tRow, tCol, frows, fcols, nbr, nbc,
params, rocks, &detectedRocks);
*maxlab = 0;
if (success)
{
for (int idx = 0; idx < MAXLAB; idx++)
{
if (rocks[idx].flag == 0)
continue;
//idx is original label
rock_to_out_rock(idx, params->rock_elongate_ratio, params->gamma, &(rocks[idx]), &(outRocks[*maxlab]));
*maxlab = *maxlab + 1;
}
}
free(rocks);
return success;
}
//BUGBUG: caller must free memory, get rid of all ptrs and have caller alloc
int detect(char* inputImagePath, RD_PARMS* params, OUTROCK** all_rocks, int* num_out_rocks )
{
char tmp[1024];
if (VERBOSE)
{
snprintf(tmp, 1024, "Reading the Scene image... %s.\n", inputImagePath);
fputs(tmp, stdout);
}
int fcols, frows;
if (read_pgm_image_dimensions(inputImagePath, &frows, &fcols) == 0)
{
snprintf(tmp, 1024, "Error reading input image, %s.\n", inputImagePath);
fputs(tmp, stderr);
return 0;
}
int nbc = fcols / tcols;
int nbr = frows / trows;
if (nbc * tcols < fcols) nbc += 1;
if (nbr * trows < frows) nbr += 1;
printf("Image size (rows, cols) (%d, %d) pixels, (%d, %d) tiles, tile size (%d, %d)\n",
frows, fcols, nbr, nbc, trows, tcols);
int completed_trows = 0;
*num_out_rocks = 0;
int maxOutRocks = (MAXLAB)*nbc * nbr;
*all_rocks = (OUTROCK*)malloc(sizeof(OUTROCK) * maxOutRocks);
static ROCK* rocks = NULL;
#pragma omp threadprivate(rocks)
static unsigned char* subimg = NULL;
#pragma omp threadprivate(subimg)
static unsigned short* labelImg = NULL;
#pragma omp threadprivate(labelImg)
int tRow = 0;
int success = 1;
#pragma omp parallel for //num_threads(1) //single threaded
for (tRow = 0; tRow < nbr; tRow++)
{
if (subimg == NULL)
{
subimg = (unsigned char*)malloc(sizeof(char) * (tcols + forcedOverlap) * (trows + forcedOverlap));
}
if (rocks == NULL)
{
rocks = (ROCK*)malloc(sizeof(ROCK) * (MAXLAB));
}
if (labelImg == NULL)
{
labelImg = (unsigned short*)malloc(sizeof(unsigned short) * (tcols + forcedOverlap) * (trows + forcedOverlap));
}
for (int tCol = 0; tCol < nbc; tCol++)
{
int maxlab = 0;
int tileSuccess = 0;
if (0 == (tileSuccess = detect_tile(inputImagePath, labelImg, subimg, tRow, tCol, frows, fcols,
nbr, nbc, params, rocks, &maxlab)))
{
printf("failed to detect tile %d %d (row, col)\n", tRow, tCol);
}
#pragma omp critical
{
success |= tileSuccess;
for (int m = 0; m < maxlab; ++m)
{
if (rocks[m].flag != 0)
{
//simulate writing to file and back to match file detections
rock_to_out_rock(*num_out_rocks, params->rock_elongate_ratio, params->gamma, &rocks[m], &((*all_rocks)[*num_out_rocks]));
(*num_out_rocks)++;
assert(*num_out_rocks < maxOutRocks); //would need to realloc
}
}
}
}
free(labelImg);
labelImg = NULL;
free(rocks);
rocks = NULL;
free(subimg);
subimg = NULL;
#pragma omp atomic
completed_trows++;
int cur_progress = (int)(completed_trows / (float)nbr * 100) % 10;
if (cur_progress == 0)
{
printf("Completed: %d%%\n", (int)(completed_trows / (float)nbr * 100));
}
}
printf("Completed: %d%%\n", 100);
fflush(stdout);
return success;
}
int gamma_from_files(char* inputImagePath, float gamma, char* outputGammaPath)
{
if (inputImagePath == NULL)
return 0;
if (outputGammaPath == NULL)
return 0;
int fcols, frows;
if (read_pgm_image_dimensions(inputImagePath, &frows, &fcols) == 0)
{
char tmp[1024];
snprintf(tmp, 1024, "Error reading input image, %s.\n", inputImagePath);
fputs(tmp, stderr);
return 0;
}
unsigned char* SceneImg = (unsigned char*)malloc(sizeof(char) * (fcols) * (frows));
if (0 == read_pgm_image_rect(inputImagePath, SceneImg, 0, 0, frows, fcols))
{
printf("failed to read source image");
free(SceneImg);
return 0;
}
unsigned char* GammaImg = (unsigned char*)malloc(sizeof(char) * (fcols) * (frows));
get_gamma_image(SceneImg, GammaImg, frows, fcols, gamma);
const int bitsPerPixel = 8;
const int maxValue = (1 << bitsPerPixel) - 1;
if (0 == write_pgm_image(outputGammaPath, GammaImg, frows, fcols, maxValue))
{
printf("failed to write output image");
free(SceneImg);
free(GammaImg);
return 0;
}
free(SceneImg);
free(GammaImg);
return 1;
}
int threshold_from_files(char* inputImagePath, float gamma, int thresholdOverride, char* outputShadowPath, int* selectedThreshold)
{
if (inputImagePath == NULL)
return 0;
int fcols, frows;
if (read_pgm_image_dimensions(inputImagePath, &frows, &fcols) == 0)
{
char tmp[1024];
snprintf(tmp, 1024, "Error reading input image, %s.\n", inputImagePath);
fputs(tmp, stderr);
return 0;
}
unsigned char* SceneImg = (unsigned char*)malloc(sizeof(char) * (fcols) * (frows));
if (0 == read_pgm_image_rect(inputImagePath, SceneImg, 0, 0, frows, fcols))
{
printf("failed to read source image");
free(SceneImg);
return 0;
}
unsigned char* ShaImg = (unsigned char*)malloc(sizeof(char) * (fcols) * (frows));
*selectedThreshold = gMET_shadows(SceneImg, ShaImg, frows, fcols, gamma, thresholdOverride);
const int bitsPerPixel = 8;
const int maxValue = (1 << bitsPerPixel) - 1;
if (0 == write_pgm_image(outputShadowPath, ShaImg, frows, fcols, maxValue))
{
printf("failed to write output image");
free(SceneImg);
free(ShaImg);
return 0;
}
free(SceneImg);
free(ShaImg);
return 1;
}
int shadows_from_files(char* inputThresholdImagePath, char* outputShadowsImagePath, int* outNumShadows)
{
if (inputThresholdImagePath == NULL)
return 0;
int fcols, frows;
if (read_pgm_image_dimensions(inputThresholdImagePath, &frows, &fcols) == 0)
{
char tmp[1024];
snprintf(tmp, 1024, "Error reading input image, %s.\n", inputThresholdImagePath);
fputs(tmp, stderr);
return 0;
}
unsigned char* threshImg = (unsigned char*)malloc(sizeof(char) * (fcols) * (frows));
if (0 == read_pgm_image_rect(inputThresholdImagePath, threshImg, 0, 0, frows, fcols))
{
printf("failed to read source image");
free(threshImg);
return 0;
}
unsigned short* labelImg = (unsigned short*)malloc(sizeof(unsigned short) * (fcols) * (frows));
//make shadow areas 1, non-shadow areas 0
invert_binary_image(threshImg, frows, fcols);
//initialize label image
if (0 == LabelConnectedRegions(threshImg, frows, fcols, labelImg, outNumShadows))