Convert image to another color profile?

[the-database]

Hello, with Wand is it possible to convert an image to another color profile, specifying the ICC profiles to use? I am trying to reproduce the results of the command listed at this link (https://www.rigacci.org/wiki/doku.php/doc/appunti/software/imagemagick_color_management) under the section Convert an image to another color profile. That command is:

convert image.tiff -strip -profile canon9000fmarkii.icc -profile sRGB.icc -strip image-srgb.tiff

This command strips any existing color profiles, assigns the color profile to canon9000fmarkii.icc (no pixel values are changed), and then converts the color profile to sRGB (pixel values are changed).

I attempted to produce the same results with Wand using some code like the following:

with WandImage.from_array(cv2.cvtColor(image, cv2.COLOR_BGR2RGB)) as img, \
        open(r'canon9000fmarkii.icc', 'rb') as gamma1iccfile, \
        open(r'sRGB.icc', 'rb') as dotgain20iccfile:
    img.strip()
    img.profiles['icc'] = canon9000fmarkiifile.read()
    img.profiles['icc'] = sRGBfile.read()
    img.strip()
    arr = np.array(img)
cv2.imwrite(output_path, cv2.cvtColor(arr, cv2.COLOR_RGB2BGR))

but the colors aren't converted. Have I done something wrong, or is color conversion with ICC profiles currently not possible with Wand?

[emcconville]

Looks like you are reading & writing with numpy arrays. As only pixel-data is transported via np's array interface, and not any image metadata. Wand's Image.strip() & Image.profiles[] will have no effect as those methods do not alter any pixel-data.

[the-database]

Thanks for the info. I'll see if I can use a LUT to modify the pixel data instead.