Data not being processed correctly #5
Description
Hi, I found other image that is not being processed correctly.
This attachment contains the original data, the pbm created by fax crate and the tiff to preview it
stream_6.zip
Looks similar to #2 because it is partially processed and at some point boom!
Using this go snippet you can get this output (it is similar to the one in other ticket but with with newlines calculated instead of hardcoded). The library source code is at https://github.com/golang/image/blob/master/ccitt/reader.go
package main
import (
"bufio"
"bytes"
"fmt"
"io"
"os"
"strconv"
"strings"
"golang.org/x/image/ccitt"
)
func byteToBits(b byte) string {
// Convertir el byte a una cadena de bits
bits := strconv.FormatUint(uint64(b), 2)
// Añadir ceros a la izquierda si la cadena de bits es menor a 8 caracteres
for len(bits) < 8 {
bits = "0" + bits
}
return bits
}
func main() {
file, err := os.Open("/media/storage/ocr/elemento")
if err != nil {
fmt.Println("Error al abrir la imagen CCITT:", err)
return
}
defer file.Close()
fmt.Println("File open")
fileReader := bufio.NewReader(file)
cols := 264
rows := 100
blackIs1 := false
encodedByteAlign := false
opts := &ccitt.Options{Invert: blackIs1, Align: encodedByteAlign}
mode := ccitt.Group4
rd := ccitt.NewReader(fileReader, ccitt.MSB, mode, cols, rows, opts)
var b bytes.Buffer
written, err := io.Copy(&b, rd)
if err != nil {
fmt.Println("Error al proc:", err)
} else {
fmt.Println("OK written", written)
index := 0
for v, e := b.ReadByte(); v != 'e' && e == nil; v, e = b.ReadByte() {
bits := byteToBits(v)
fmt.Print(strings.Replace(strings.Replace(bits, "1", " ", -1), "0", "*", -1))
//fmt.Print(bits)
index += 1
if index%(cols/8) == 0 {
fmt.Println("")
index = 0
}
}
}
}
Thank you so much!