Image adaptation with target size, quality and resolution constraints
First Claim
Patent Images
1. A computer-implemented method for image adaptation, comprising:
- accepting a digitally-represented input image;
accepting a target size requirement; and
modifying the input image by reducing at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the input image, so as to produce a compressed output image meeting the target size requirement,wherein accepting the input image comprises accepting a minimum tolerable quality requirement, and wherein modifying the input image comprises reducing the quality of the input image while meeting the minimum tolerable quality requirement, and reducing the resolution of the input image only when reducing the quality of the input image while meeting the minimum tolerable quality requirement does not meet the target size requirement.
10 Assignments
0 Petitions
Accused Products
Abstract
A computer-implemented method for image adaptation includes accepting a digitally-represented input image and a target size requirement. The input image is modified by optimally determining at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the input image, so as to produce a compressed output image meeting the target size requirement.
40 Citations
31 Claims
-
1. A computer-implemented method for image adaptation, comprising:
-
accepting a digitally-represented input image; accepting a target size requirement; and modifying the input image by reducing at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the input image, so as to produce a compressed output image meeting the target size requirement, wherein accepting the input image comprises accepting a minimum tolerable quality requirement, and wherein modifying the input image comprises reducing the quality of the input image while meeting the minimum tolerable quality requirement, and reducing the resolution of the input image only when reducing the quality of the input image while meeting the minimum tolerable quality requirement does not meet the target size requirement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. Apparatus for image adaptation, comprising:
-
an interface, which is arranged to accept a digitally-represented input image and a target size requirement; and a processor, which is arranged to modify the input image by reducing at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the input image, so as to produce a compressed output image meeting the target size requirement, wherein the interface is arranged to accept a minimum tolerable quality requirement, and wherein the processor is arranged to reduce the quality of the input image while meeting the minimum tolerable quality requirement, and to reduce the resolution of the input image only when reducing the quality of the input image while meeting the minimum tolerable quality requirement does not meet the target size requirement. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
-
-
29. A communication system, comprising:
-
one or more communication terminals, which are arranged to accept and display digitally-represented images; and a media adaptation server, which is arranged to accept a digitally-represented input image addressed to a destination terminal selected from the one or more communication terminals, to accept a target size requirement, to modify the input image by reducing at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the input image, so as to produce a compressed output image meeting the target size requirement, and to send the compressed output image to the destination terminal, wherein the media adaptation server is arranged to accept a minimum tolerable quality requirement, to reduce the quality of the input image while meeting the minimum tolerable quality requirement, and to reduce the resolution of the input image only when reducing the quality of the input image while meeting the minimum tolerable quality requirement does not meet the target size requirement. - View Dependent Claims (30)
-
-
31. A computer software product for image adaptation, the product comprising a non-transitory computer-readable medium, in which program instructions are stored, which instructions, when read by a computer, cause the computer to accept a digitally-represented input image and a target size requirement, and to modify the input image by reducing at least one of a resolution of the input image and a quality of the input image, the quality defining an amount of information allocated to represent each pixel value of the image, so as to produce a compressed output image meeting the target size requirement,
wherein the instructions cause the computer to accept a minimum tolerable quality requirement, to reduce the quality of the input image while meeting the minimum tolerable quality requirement, and to reduce the resolution of the input image only when reducing the quality of the input image while meeting the minimum tolerable quality requirement does not meet the target size requirement.
Specification