When creating graphics in GIMP I often make several versions of graphics (like game characters with different outfits) using indexed color mode in the .png file where I develop the images so I can cha...

I want to plot some letters and separate them by 4 equal zones according to the letter's width and height. It just so happens that everything looks good until a zone has blank pixels, such as zone_0.j...

Whenever I do interpolation plot, I noted that not every colormap in Matplotlib.cm is ScalarMappable. I wonder what is the proper way to get the full list of colormap which is ScalarMappable? I manage...

Most image editing software has gradient map functions. Gradient maps take the brightness of a given pixel and apply a gradient of colors according to brightness. Photoshop and other software have way...