Apparatus and method for processing decoded images
AssigneeKabushiki Kaisha Toshiba
InventorToshiyuki Nagai
Life of this patent
Estimating the term…
Abstract
According to one embodiment, an image processing apparatus includes a decoder, a first sharpening module, and a second sharpening module. The decoder decodes an encoded image to obtain a decoded image. The first sharpening module performs first sharpening on the decoded image. The second sharpening module performs second sharpening on the decoded image subjected to the first sharpening. The second sharpening requires a different processing time from a processing time required for the first sharpening. The first sharpening module includes a first noise remover that removes noise generated by encoding from the decoded image.
Claims11
An image processing apparatus comprising:
- a decoder configured to decode an encoded image to obtain a decoded image;
- a first sharpening module configured to perform sharpening as first sharpening on the decoded image, the first sharpening module comprises a first noise remover configured to remove noise generated by encoding from the decoded image;
- and
- a second sharpening module configured to perform sharpening as second sharpening on the decoded image subjected to the first sharpening, the second sharpening requiring a different processing time from a processing time required for the first sharpening,
- wherein the first sharpening module is configured to perform the sharpening on a pixel component with an amplitude equal to or less than a predetermined level contained in the decoded image, and the second sharpening module is configured to perform the sharpening on a pixel component with an amplitude larger than the predetermined level contained in the decoded image subjected to the first sharpening.
An image processing method applied to an image processing apparatus configured to decode an encoded image and sharpen the image, the image processing method comprising:
- decoding, by a decoder, an encoded image to obtain a decoded image;
- performing, by a first sharpening module, first sharpening on the decoded image by at least removing noise generated by encoding from the decoded image;
- and
- performing, by a second sharpening module, second sharpening on the decoded image subjected to the first sharpening, the second sharpening requiring a different processing time from a processing time required for the first sharpening,
- wherein the first sharpening module is configured to perform the sharpening on a pixel component with an amplitude equal to or less than a predetermined level contained in the decoded image, and the second sharpening module is configured to perform the sharpening on a pixel component with an amplitude larger than the predetermined level contained in the decoded image subjected to the first sharpening.
Dependencies are inferred from the claim text.