JPG embedded ICC profile causing problems

[ChrisPinewood]

I'm having trouble with the following JPG image when trying to convert it to PNG:

Problem image

It appears to be trying to use the embedded CMYK ICC profile but failing, the image itself is marked as sRGB. I did wonder if just stripping out the embedded ICC profile out would work, but I'm not sure how to do this, or whether I should be taking a different approach.

This is the code I'm using to convert (as well as resize):

  sharp(filename)
    .resize(requiredSize.width, requiredSize.height)
    .background({r: 0, g: 0, b: 0, a: 0})
    .embed()
    .png()
    .toBuffer().then((outputBuffer) => {
      resolve(outputBuffer);
    })
    .catch((err) => {
      console.log('Error creating image:', err);
      reject(err);
    });

It's very possible I'm doing something very silly in the above!

Many thanks in advance.

[lovell]

@ChrisPinewood Your pinewood-solutions website appears to be compromised.

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[ChrisPinewood]

Thank you Lovell - I'll sort that!

Any reason for the problem that I'm seeing yet?

[lovell]

Looks like this module has never removed ICC profiles from PNG output; nice bug.

libvips' PNG saver doesn't use strip like all the others, so the profile has to be removed instead. Commit 032bb7e adds a test and the fix.

[ChrisPinewood]

Fantastic - thank you Lovell for such a quick response!

[rodrigoalviani]

I have the same problem, but without convert to PNG. Just when crop a image. Always jpg 2 jpg.
vips warning: icc_transform: embedded profile incompatible with image

[lovell]

@rodrigoalviani icc_transform: embedded profile incompatible with image usually indicates a CMYK profile in a RGB image (or vice versa). Set the VIPS_WARNING env variable to silence warnings from libvips.

[lovell]

This is fixed in v0.16.0, now available via npm.