Image processing apparatus, method and computer-executable program product for converting the format of data for specific image data
AssigneeCanon Kabushiki Kaisha
InventorHideyuki Rengakuji
Life of this patent
Estimating the term…
Abstract
An image processing apparatus, method and computer-executable program product for converting a data format of specific image data and, in particular, for performing block/raster conversion on color image data, converts image data between a raster form and a block form by supplying image data having a plurality of components in a first form, changing the order of the plurality of components and controlling storing of image data to a memory which stores the image data temporarily such that the image data is stored in the memory for each component and by reading out from the memory in a second form which is different from the first form.
Claims9
An image processing apparatus which converts image data between a raster form and a block form, comprising:
- an image supplier for supplying first image data having luminance and color difference components in raster form, wherein the luminance and color difference components are arranged in a first arrangement in the first image data;
- a re-arranger for changing the first arrangement of the luminance and color difference components of the first image data to generate second image data in which luminance and color difference components in raster form are arranged in a second, different arrangement;
- a memory for storing the second image data in raster form;
- and
- an outputter for outputting second image stored by the memory in block form.
An image processing method which converts image data between a raster form and a block form, comprising the steps of:
- a supply step of supplying first image data having luminance and color difference components in raster form, wherein the luminance and color difference components are arranged in a first arrangement in the first image data;
- a rearranging step of changing the first arrangement of the luminance and color difference components of the first image data to generate second image data in which luminance and color difference components in raster form are arranged in a second, different arrangement;
- storing the second image data in raster form in a memory;
- and
- outputting second image from the memory in block form.
A computer-executable program product stored on a computer readable medium, the computer-executable program product converting image data between a raster form and a block form, said computer program product including:
- computer readable program code to supply first image data having luminance and color difference components in raster form, wherein the luminance and color difference components are arranged in a first arrangement in the first image data;
- computer readable program code to change the first arrangement of the luminance and color difference components of the first image data to generate second image data in which luminance and color difference components in raster form are arranged in a second, different arrangement;
- computer readable program code for storing the second image data in raster form in a memory;
- and
- computer readable program code for outputting second image from the memory in block form.
Dependencies are inferred from the claim text.