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jens simonsen  
#1 Posted : Wednesday, May 10, 2017 11:17:49 PM(UTC)
jens simonsen

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Groups: Member
Joined: 3/26/2017(UTC)
Posts: 4

Thanks: 2 times
HI. Im trying to make a simple convert from tiff to jpeg using some the examples here how ever i keep running into the error : The profile doesn't match to color space required on some of the tiff files but not all of them.

i also noticed this started after i installed the newest of the graphics mill library.

the variations i have tried is thus:

Code:
                using (var reader = new TiffReader(filepath))
                using (var converter = new ColorConverter(PixelFormat.Format32bppCmyk))
                using (var writer = new JpegWriter(outputpath + @"\" + filename + ".jpg"))
                {
                    if (reader.AdobeResources != null)
                    {
                        var adobeResources = new AdobeResourceDictionary();

                        for (var i = 2000; i <= 2997; i++)
                        {
                            if (reader.AdobeResources.Contains(i))
                            {
                                adobeResources[i] = reader.AdobeResources[i];
                            }
                        }

                        writer.AdobeResources = adobeResources;
                    }

                    Pipeline.Run(reader + converter + writer);
                }

Code:

                using (var reader = ImageReader.Create(filepath))
                using (var converter = new ColorConverter(PixelFormat.Format32bppCmyk))
                using (var writer = ImageWriter.Create(outputpath + @"\" + filename + ".jpg"))
                {
                    converter.ColorManagementEngine = ColorManagementEngine.LittleCms;
                    converter.DeviceLinkProfile = new ColorProfile(@"profiles\ISOcoated_v2_to_PSOcoated_v3_DeviceLink.icc");
                    converter.DestinationProfile = new ColorProfile(@"profiles\PSOcoated_v3.icc");

                    Pipeline.Run(reader + converter + writer);
                }

Code:
using (var reader = new TiffReader(sourceImagePath))
using (var writer = new JpegWriter(outImagePath))
using (var colorConverter = new ColorConverter(writer.GetAppropriatePixelFormat(reader.PixelFormat)))
{
    writer.AdobeResources = reader.AdobeResources;

    Pipeline.Run(reader + colorConverter + writer);
}


those i just some i have tried all of then produce the same error.

i have to ask you guys what am i doing wrong now :). i simply cant get my head around on what im missing. :(

regrds jens



Fedor  
#2 Posted : Thursday, May 11, 2017 3:21:49 AM(UTC)
Fedor

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Hi Jens,

Could you post a problem TIFF file?

You can submit a case if it is more convenient for you.
Best regards,
Fedor Skvortsov
jens simonsen  
#3 Posted : Thursday, May 11, 2017 3:38:14 AM(UTC)
jens simonsen

Rank: Newbie

Groups: Member
Joined: 3/26/2017(UTC)
Posts: 4

Thanks: 2 times
Originally Posted by: Fedor Go to Quoted Post
Hi Jens,

Could you post a problem TIFF file?

You can submit a case if it is more convenient for you.


Hi. sure the tiff file should be attached now.

9404_9404.tif (676kb) downloaded 5 time(s).

Fedor  
#4 Posted : Thursday, May 11, 2017 6:57:05 AM(UTC)
Fedor

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Joined: 7/28/2003(UTC)
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The provided file has an RGB pixel format, but a CMYK color profile is embedded (U.S. Web Coated SWOP v2).

Photoshop shows the following error on the file loading:

The embedded ICC profile cannot be used because the ICC profile is invalid. Ignoring the profile.

photoshop.png

So we need to ignore a color profile as well:

Code:
using (var reader = new TiffReader(filepath))
using (var converter = new ColorConverter(PixelFormat.Format32bppCmyk))
using (var writer = new JpegWriter(outputpath + @"\" + filename + ".jpg"))
{
	if (reader.AdobeResources != null)
	{
		var adobeResources = new AdobeResourceDictionary();

		for (var i = 2000; i <= 2997; i++)
		{
			if (reader.AdobeResources.Contains(i))
			{
				adobeResources[i] = reader.AdobeResources[i];
			}
		}

		writer.AdobeResources = adobeResources;
	}

	if (reader.ColorProfile == null || reader.ColorProfile.ColorSpace == reader.PixelFormat.ColorSpace)
	{
		Pipeline.Run(reader + converter + writer);
	}
	else
	{
		using (var bitmap = new Bitmap())
		{
			Pipeline.Run(reader + bitmap);

			//Remove incorrect color profile
			bitmap.ColorProfile = null;

			Pipeline.Run(bitmap + converter + writer);
		}
	}
}


P.S. I have to use Bitmap as there is no way to remove an incorrect color profile with the Pipeline approach.

Edited by user Tuesday, May 16, 2017 5:49:15 PM(UTC)  | Reason: Not specified

Best regards,
Fedor Skvortsov
thanks 1 user thanked Fedor for this useful post.
jens simonsen on 5/14/2017(UTC)
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