Image processing devices and computer program products for processing image data

A computer program product comprising a computer usable medium having computer readable instructions stored thereon, the computer readable instructions configured to cause a processor to execute the steps of:

• determining whether data of an original image meets a particular criterion of a particular image quality category;
• generating image data of a thumbnail list, wherein the image data of the thumbnail list comprises image data of a thumbnail of the original image;
• adding particular indicator mark image data to the thumbnail list image data when the original image data does not meet the particular criterion, wherein the particular indicator mark image data corresponds to a particular indicator mark positioned in the thumbnail list at a position corresponding to the thumbnail of the original image, and the particular indicator mark indicates at least a result of the determination of whether the original image data meets the particular criterion of the particular image quality category;
• and
• outputting the thumbnail list based on the image data of the thumbnail list.