Image processing apparatus and image forming apparatus capable of classifying respective images of plurality of pages of original document based on plurality of topic words

An image processing apparatus comprising:

• an input device through which an image of an original document is input;
• an operation device through which an instruction of a user is input;
• and
• a control device including a processor and functioning, through the processor executing a control program, as a controller that accepts an input of a plurality of topic words through the operation device, recognizes, upon acceptance of input of images of a plurality of pages of the original document through the input device, a character string in the image of each of the plurality of pages of the original document, makes a determination of whether or not the character string contains at least one of the plurality of input topic words, and classifies the respective images of the plurality of pages of the original document on basis of the individual topic word based on results of the determination for the individual pages of the original document by collecting the images of the pages of the original document containing the same topic word into one group, wherein
• when any one of the plurality of topic words is contained in a character string in the image of one of the plurality of pages of the original document, the controller classifies the image of the one page of the original document as a first page into one group, and
• when there are one or more topic wordless pages, each of which containing none of the plurality of topic words in the character string in the image of the original document, out of one or more subsequent pages following the first page, the controller performs a classifying process of classifying each of the image or images of the one or more topic wordless pages following the first page of the original document, together with the image of the first page of the original document, into the same one group until a page with another topic word, containing another topic word of the plurality of topic words in the character string in the image of the original document, appears, and
• the controller classifies, when the page with another topic word appears, the image of the page with another topic word of the original document into another group, and repeats the classifying process with the page with another topic word as the first page.