Apparatus for and method of utilizing density histograms for correcting objective images

摘要: Even if various types of images exist together in an objective image, it is possible to sufficiently improve the quality image at all areas which are be corrected. An image-correction apparatus has such a structure CPU (10), procedure part (12), color monitor (14), key board (16), mouse (18), inputting device (20), memory (22), method (24), outputting (26) and like connected main bus (50). First, (10) instructs (20) read store resultant data (14) display using stored. operator then designate corrected, selects suitable area from four methods, i.e., one for correcting photograph, black letter against white background, background other thin line, while observing screen display. The (12) executes designated on area. output expressed by obtained after execution procedure.