Color is not correct for multipage RGB compressed Type 7 tiff #29

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opened 2021-04-25 19:57:48 +00:00 by josch · 0 comments

josch commented

2021-04-25 19:57:48 +00:00

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By Joseph Biggert on 2016-05-23T22:08:38.269Z

When this file, , is converted to pdf, the color is not correct.

By josch on 2016-05-25T19:01:02.531Z

Could you provide an example file?

By Joseph Biggert on 2016-06-09T16:20:58.782Z

The link to the image is in the description although it shows up in Chrome as a broken image.

Here it is in plain text: http://gitlab.mister-muffin.de/josch/img2pdf/uploads/36b22e1ba01fcf15fe74d441dd6297c0/test-multi-rgb-compression-type-7.tiff

By josch on 2017-01-21T08:01:33.143Z

I fear there is nothing much we can do about this in img2pdf because this seems to be a problem with PIL support of this image type. Try this:

python3 -c 'from PIL import Image; Image.open("test-multi-rgb-compression-type-7.tiff").save("out.png")'

Then out.png will show up in wrong colors.

By josch on 2020-08-04T07:11:53.695Z

Today, four years later, it seems PIL is now able to process that kind of TIFF file just fine! So this works for me now. @biggert can you confirm?

By Joseph Biggert on 2020-09-01T20:17:47.989Z

I would agree - this appears to work now. Thanks!

By Joseph Biggert on 2020-09-01T20:17:48.560Z

Status changed to closed

*By Joseph Biggert on 2016-05-23T22:08:38.269Z* When this file, ![test-multi-rgb-compression-type-7](/uploads/36b22e1ba01fcf15fe74d441dd6297c0/test-multi-rgb-compression-type-7.tiff), is converted to pdf, the color is not correct. --- *By josch on 2016-05-25T19:01:02.531Z* --- Could you provide an example file? --- *By Joseph Biggert on 2016-06-09T16:20:58.782Z* --- The link to the image is in the description although it shows up in Chrome as a broken image. Here it is in plain text: http://gitlab.mister-muffin.de/josch/img2pdf/uploads/36b22e1ba01fcf15fe74d441dd6297c0/test-multi-rgb-compression-type-7.tiff --- *By josch on 2017-01-21T08:01:33.143Z* --- I fear there is nothing much we can do about this in img2pdf because this seems to be a problem with PIL support of this image type. Try this: python3 -c 'from PIL import Image; Image.open("test-multi-rgb-compression-type-7.tiff").save("out.png")' Then `out.png` will show up in wrong colors. --- *By josch on 2020-08-04T07:11:53.695Z* --- Today, four years later, it seems PIL is now able to process that kind of TIFF file just fine! So this works for me now. @biggert can you confirm? --- *By Joseph Biggert on 2020-09-01T20:17:47.989Z* --- I would agree - this appears to work now. Thanks! --- *By Joseph Biggert on 2020-09-01T20:17:48.560Z* --- Status changed to closed