A WebP image has a limit on its width and height. The maximum size of a WebP image is 16383 x 16383 pixels.
The WebP format uses 8 bits for each of three color channels (Red, Green, and Blue) and therefore the format can display 16,777,216 different colors at a time. The format also uses 8 bits for alpha channel and supports 0~255 levels of opacity.
Saving a WebP file with lossy compression uses YUV color space and it makes a difference in image quality between the WebP result and the original image.
The WebP format is designed not to put too much pressure on the CPU and memory, and does not support progressive or interlaced display unlike the JPG format does.
