Image segmentation - Wikipedia
https://en.wikipedia.org/wiki/Image_segmentationMost of the aforementioned segmentation methods are based only on color information of pixels in the image. Humans use much more knowledge when performing image segmentation, but implementing this knowledge would cost considerable human engineering and computational time, and would require a huge domain knowledge database which does not currently exist. Trainable segmentation methods, such as neural networksegmentation, overcome these issues …