Image processing apparatus for and method of improving an image and an image display apparatus comprising the image processing apparatus
OwnerMarina Marie Pierre Nicolasinventor
Life of this patent
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Abstract
An image processing apparatus (100) for improving images depending on the type of regions within the image, comprises a segmentation unit (102) to localize regions with a pre-selected type and an improvement unit (106) being designed to improve the image, which can be controlled in order to modulate the amount of improvement over the image. The image processing apparatus (100) further comprises a determination unit to find a range of values to characterize the pixels of the regions which should be handled separately based on the results of the segmentation unit (102).
Claims13
An image processing apparatus (100) for improving an image, which image comprises a plurality of pixels, and the image processing apparatus (100) comprising:
- a segmentation unit (102) that is designed to perform:
- a first test whether a first value (230) of a first property of a selected pixel (222) is substantially equal to a second value (228) of a first predetermined range (212) of values of the first property;
- and
- a second test whether a third value (226) of a second property of the selected pixel (222) is substantially equal to a fourth value (224) of a second predetermined range (214) of values of the second property, in order to segment the image into multiple regions of pixels, each region with a region type;
- and
- an improvement unit (106) that is designed to improve the image by processing a particular pixel, depending on the region type of the region to which the particular pixel corresponds, characterized in comprising a determination unit (104) that is designed to characterize pixels corresponding to regions with a pre-determined region type by determination of an actual range (216) of values of a particular property of the pixels, other than a location;
- and that the improvement unit (106) processes the pixels corresponding to regions with the pre-determined region type differently.
An image display apparatus (300) provided with:
- receiving means (302) for receiving a video signal representing images;
- an image processing apparatus (100) for improving an image, which image comprises a plurality of pixels, and the image processing apparatus (100) comprising:
- a segmentation unit (102) that is designed to perform:
- a first test whether a first value (230) of a first property of a selected pixel (222) is substantially equal to a second value (228) of a first predetermined range (212) of values of the first property;
- and
- a second test whether a third value (226) of a second property of the selected pixel (222) is substantially equal to a fourth value (224) of a second predetermined range (214) of values of the second property,
- in order to segment the image into multiple regions of pixels, each region with a region type;
- and
- an improvement unit (106) that is designed to improve the image by processing a particular pixel, depending on the region type of the region to which the particular pixel corresponds;
- and
- a display device (306) for displaying the images, characterized in that the image processing apparatus (100) comprises a determination unit (104) that is designed to characterize pixels corresponding to regions with a predetermined region type by determination of an actual range (216) of values of a particular property of the pixels, other than a location;
- and that the improvement unit (106) processes the pixels corresponding to regions with the pre-determined region type differently.
A method of improving an image, which image comprises a plurality of pixels, and the image processing apparatus (100) comprising:
- a segmentation step to perform:
- a first test whether a first value (230) of a first property of a selected pixel (222) is substantially equal to a second value (228) of a first predetermined range (212) of values of the first property;
- and
- a second test whether a third value (226) of a second property of the selected pixel (222) is substantially equal to a fourth value (224) of a second predetermined range (214) of values of the second property,
- in order to segment the image into multiple regions of pixels, each region with a region type;
- and
- an improvement step to improve the image by processing a particular pixel, depending on the region type of the region to which the particular pixel corresponds, characterized in comprising a determination step to characterize pixels corresponding to regions with a predetermined region type by determination of an actual range (216) of values of a particular property of the pixels, other than a location;
- and that the improvement unit (106) processes the pixels corresponding to regions with the pre-determined region type differently.
Dependencies are inferred from the claim text.