Patent ID: 7967445

Claim:
An image projecting apparatus, comprising: an illumination optical system configured to emit a flux of light; an image processing device configured to process image information; a light modulating device configured to modulate the flux of light emitted by the illumination optical system based on the image information processed by the image processing device; and a projection optical system configured to project the flux of light modulated by the light modulating device on a screen to form a projected image; wherein the image processing device comprises a first image processor configured to process the image information on a pixel unit region basis, each pixel unit consisting of one or more pixels, so as to compensate for degradation in the image projected by the projection optical system; a determination unit configured to determine whether the image information processed by the first image processor on a pixel unit region basis is within a representable modulation range of the light modulating device; and a second image processor configured to process a part of the image information in a pixel region that is determined to lie outside the representable range; wherein the second image processor converts the part of the image information in the pixel region determined to lie outside the representable modulation range back to its original image information prior to the image processing by the first image processor; and plural image processing devices, one for each of two or more colors, wherein, in a pixel region where the part of the image information processed by the first image processor of a first image processing device for a first color is not within the representable modulation range, the second image processor of the first image processing device converts the part of the image information in the aforementioned pixel region back to its original image information prior to the image processing by the first image processor of the first image processing device, and the second image processor of a second image processing device for a second color processes a part of the image information for the second color processed by the first image processor of the second image processing device that is in the same aforementioned pixel region with the same ratio of change as the ratio of change introduced into the part of the image information for the first color in the pixel region by the processing by the second image processor of the first image processing device.