Image processing apparatus, mobile terminal device and image processing computer readable program
AssigneeHitachi, Ltd.
InventorTomokazu Murakami
Life of this patent
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Abstract
An image processing apparatus includes a gradation quantization processing in a case of performing a region dividing processing in the animation of a moving picture and in an object extraction, in which frequency histograms are created for each frame, a judgment is performed whether a quantization reference value is re-calculated by comparing the frequency histograms, in the case of performing the re-calculation, and a quantization reference value is successively obtained in accordance with the product of the frequency histograms and the error coefficient, thereby realizing a high-speed high-quality image process.
Claims10
An image processing apparatus comprising:
- an image input unit which inputs a moving picture;
- and
- a processor which performs a gradation quantization processing of a frame constituting the moving picture which has been input,
- wherein the gradation quantization processing reduces a number of gradations in the frame, and
- wherein the processor modifies reference values of the gradation quantization processing which are level values constituting gradations after the gradation quantization.
An image processing apparatus comprising:
- an image input unit which inputs a moving picture;
- a processor which performs a gradation quantization processing of a frame constituting the moving picture which has been input;
- and
- an image output unit which outputs the moving picture which has been subjected to a gradation processing,
- wherein the gradation quantization processing reduces a number of gradations in the frame, and
- wherein the processor performs statistical processing associated with pixel values for each of the frames constituting the moving picture, compares a specific amount which have been obtained by the statistical processing for each of the frames between the frames, resets reference values of the gradation quantization processing which are level values constituting gradations after the gradation quantization, according to the comparison result, and performs a gradation quantization processing of the frames according to the reference values.
A mobile terminal device comprising:
- a camera which picks up a moving picture,
- a control unit which performs a gradation quantization processing of a frame constituting the moving picture which has been picked up, and
- a display unit which displays the moving picture which has been subjected to a gradation processing,
- wherein the gradation quantization processing reduces a number of gradations in the frame,
- wherein the control unit performs statistical processing associated with pixel values for each of frames constituting the moving picture, compares image specific amounts which have been obtained by the statistical processing for each of the frames, between the frames, resets reference values of the gradation quantization processing which are level values constituting gradations after the gradation quantization, according to the comparison result, and performs a gradation quantization processing of the frames according to the reference values, and
- wherein the moving picture picked up by the camera is processed and displayed on the display unit.
Dependencies are inferred from the claim text.