IMAGE PROCESSING DEVICE

PROBLEM TO BE SOLVED: To provide an image processing device that carries out real-time histogram processing where write access to a histogram RAM in generating a histogram and readout access to a histogram in referring to a histogram do not conflict.SOLUTION: An image processing device 1, after the end of a first period where a histogram is generated based on input image data, brings down a CPU referable signal (flag) 112, and performs control to prohibit a CPU 106 from referring to the histogram, from the time going back by a predetermined time required for the CPU 106 to carry out histogram reference processing to the end of a second period, with the time of the end of the second period as a reference where the histogram stored in a histogram RAM 105 is released to allow the CPU to refer thereto.