Video display device and projector

A video display device comprising:

• a video receiver;
• a first local illumination component gain control processor configured to perform a first local illumination component gain control process on a video inputted via the video receiver;
• a second local illumination component gain control processor configured to perform a second local illumination component gain control process, which is different from the first local illumination component gain control process, on the video inputted via the video receiver;
• a video composer configured to compose a video processed by the first local illumination component gain control processor and a video processed by the second local illumination component gain control processor in accordance with a feature of the video inputted via the video receiver;
• a video generator configured to generate a video by correcting a vector on a color space in a same direction as a vector on a color space included by the video inputted via the video receiver by using a color correction ratio calculated based on an absolute value of a color space vector in a signal of the video composed by the video composer;
• and
• a display configured to display a video based on the video outputted by the video generator,
• wherein in a process of composing the video processed by the first local illumination component gain control processor and the video processed by the second local illumination component gain control processor, the video composer is configured to perform a luminance level converting process of converting a luminance level for each pixel so that more output luminance levels are assigned to a luminance band having a luminance distribution larger than a flat reference luminance distribution to improve visibility of a video,
• wherein the video composer is configured to change a gain of the luminance level converting process in accordance with an average pixel value level of the video inputted via the video receiver,
• wherein the video generator is configured to multiply the color correction ratio by a gain for the color correction ratio which is different from the gain of the luminance level converting process, and
• wherein the video generator is configured to change the gain for the color correction ratio to be multiplied by the color correction ratio in accordance with the average pixel value level of the video inputted via the video receiver.

A projector comprising:

• a video receiver;
• a first local illumination component gain control processor configured to perform a first local illumination component gain control process on a video inputted via the video receiver;
• a second local illumination component gain control processor configured to perform a second local illumination component gain control process, which is different from the first local illumination component gain control process, on the video inputted via the video receiver;
• a video composer configured to compose a video processed by the first local illumination component gain control processor and a video processed by the second local illumination component gain control processor in accordance with a feature of the video inputted via the video receiver;
• and
• a video projector configured to project a display video based on the video outputted by the video composer,
• wherein in a process of composing the video processed by the first local illumination component gain control processor and the video processed by the second local illumination component gain control processor, the video composer is configured to perform a luminance level converting process of converting a luminance level for each pixel so that more output luminance levels are assigned to a luminance band having a luminance distribution larger than a flat reference luminance distribution to improve visibility of a video, and
• wherein the video composer is configured to change a gain of the luminance level converting process in accordance with an average pixel value level of the video inputted via the video receiver.

A projector comprising:

• a video receiver;
• a first local illumination component gain control processor configured to perform a first local illumination component gain control process on a video inputted via the video receiver;
• a second local illumination component gain control processor configured to perform a second local illumination component gain control process, which is different from the first local illumination component gain control process, on the video inputted via the video receiver;
• a video composer configured to compose a video processed by the first local illumination component gain control processor and a video processed by the second local illumination component gain control processor in accordance with a feature of the video inputted via the video receiver;
• a video generator configured to generate a video by correcting a vector on a color space in a same direction as a vector on a color space included by the video inputted via the video receiver by using a color correction ratio calculated based on an absolute value of a color space vector in a signal of the video composed by the video composer;
• and
• a video projector configured to project a display video based on the video outputted by the video generator,
• wherein in a process of composing the video processed by the first local illumination component gain control processor and the video processed by the second local illumination component gain control processor, the video composer is configured to perform a luminance level converting process of converting a luminance level for each pixel so that more output luminance levels are assigned to a luminance band having a luminance distribution larger than a flat reference luminance distribution to improve visibility of a video,
• wherein the video composer is configured to change the gain of the luminance level converting process in accordance with an average pixel value level of the video inputted via the video receiver,
• wherein the video generator is configured to multiply the color correction ratio by a gain for the color correction ratio which is different from the gain of the luminance level converting process, and
• wherein the video generator is configured to change the gain for the color correction ratio in accordance with the average pixel value level of the video inputted via the video receiver.