rayimage. Generate simulated camera bokeh, depth of field, 2D convolutions, and other effects. Reads arrays and matrices as well as 'JPEG', 'PNG', 'TIFF', 'TGA', 'BMP', 'PSD', 'GIF', 'HDR', 'PIC', 'PNM', and 'EXR' files. Includes functions for color correction, colorspace conversion, resizing, image and text overlays, exposure, vignetting, and image titles.