Merge pull request #8 from alicevision/dev_srgb

Convert to sRGB when it is not already the case

Author: fabiencastan

appveyor.yml

@@ -1,6 +1,6 @@
 version: '1.0.{build}'
 
-image: Visual Studio 2015 
+image: Visual Studio 2017
 
 configuration:
   - Release
@@ -9,7 +9,7 @@ platform:
   - x64
 
 environment:
-  QT5: C:\Qt\5.11.1\msvc2015_64
+  QT5: C:\Qt\5.11.2\msvc2017_64
   # APPVEYOR_SAVE_CACHE_ON_ERROR: true
 
 install:
@@ -37,4 +37,4 @@ build:
 
 cache:
   c:\tools\vcpkg\installed\
- 
+ 

src/imageIOHandler/QtOIIOHandler.cpp

@@ -82,6 +82,14 @@ bool QtOIIOHandler::read(QImage *image)
 
     qDebug() << "[QtOIIO] width:" << inSpec.width << ", height:" << inSpec.height << ", nchannels:" << inSpec.nchannels;
 
+    if(inSpec.nchannels >= 3)
+    {
+        // Color conversion to sRGB
+        const std::string& colorSpace = inSpec.get_string_attribute("oiio:Colorspace", "sRGB");
+        if(colorSpace != "sRGB")
+            oiio::ImageBufAlgo::colorconvert(inBuf, inBuf, colorSpace, "sRGB");
+    }
+
     int nchannels = 0;
     QImage::Format format = QImage::NImageFormats;
     if(inSpec.nchannels == 4)