: Why does an almost solid line appear in this image? I am learning how to use python's pillow library to produce images, and for a test I made it produce a 256*256 RGB image with each pixels

@Bethany839

Posted in: #ColorTheory #Gradient #Python

I am learning how to use python's pillow library to produce images, and for a test I made it produce a 256*256 RGB image with each pixels green value equal to its x position and its blue value equal to its y position (relative to the top left corner) Everything worked fine, I got an image with green and blue gradients, just as expected, however their seems to be a solid-ish blue line from the upper left to the lower middle. This color artifact made me intrigued. I checked that my program worked correctly, which it did. I don't know if It's my computer monitor, or some visual effect, but I'm puzzled as to why I am seeing this? Could you shed some light on this? The image is attached.

EDIT: When I uploaded the image, the artifact disappeared, I took a screen shot of the image in a viewer, then cropped it and posted it. My image viewer might be partially responsible.

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