I have a large amount of JPEG thumbnail images ranging in size from 120x90 to 320x240 and I would like to classify them as either Real Life-like or Cartoon-like.
How mig
This is an Image-classification problem which AFAIK ImageMagick will NOT be able to do.
opencv (which deals with computer vision) might be of more help, for some idea on how an "image classifier" is trained with training data.