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Asked: 2026-06-05T01:27:05+00:00

I am working on a telescope project and we are testing the CCD. Whenever

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I am working on a telescope project and we are testing the CCD. Whenever we take pictures things are slightly pink-tinted and we need true color to correctly image galactic objects. I am planning on writing a small program in python or java to change the color weights but how can I access the weight of the color in a raw data file (it is rgb.bin)?

We are using a bayer matrix algorithm to convert monochromatic files to color files and I would imagine the problem is coming from there but I would like to fix it with a small color correcting program.

Thanks!

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1 Answer

  1. Editorial Team

    Typical white-balance issues are caused by differing proportions of red, green, and blue in the makeup of the light illuminating a scene, or differences in the sensitivities of the sensors to those colors. These errors are generally linear, so you correct for them by multiplying by the inverse of the error.

    Suppose you measure a point you expect to be perfectly white, and its RGB values are (248,237,236) i.e. pink. If you multiply each pixel in the image by (248/248,248/237,248/236) you will end up with the correct balance.

    You should definitely ensure that your Bayer filter is producing the proper results first, or the base assumption of linear errors will be incorrect.

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