IMAGE DISPLAY DEVICE AN IMAGING DEVICE USING THE SAME

摘要

An image display device (10) receives an input image signal and performs gradation conversion before displaying the image. The image display device (10) includes: a display mode switching unit (16) which switches a display mode by an input from user I/F (12) or an illuminance sensor (14); a local histogram smoothing unit (18) which performs a local gradation correction on the input image signal; a second tone curve conversion unit (22) which performs a gradation conversion process on an image which has been subjected to a local gradation correction by the local histogram smoothing unit (18) by using the tone curve conversion based on the display mode switched by the display mode switching unit (16); and an image display unit (26) which displays an image after the gradation conversion process by the second tone curve conversion unit (22).