Image processing apparatus and method thereof and storing medium
AssigneeCanon Kabushiki Kaisha
InventorsYASUKO SHIBAHARA, ATSUSHI SHOJI
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Abstract
An object is to add additional information to an input image using a general image processing without providing a specific information adding section which is not included in a general image processing unit. To attain this object, an apparatus of the present invention inputs M-value image data and converts the inputted M-value image data into N-value image data, wherein the value M is larger than the value N, on the basis of threshold table groups composed of plural kinds of threshold tables of which using order is determined so as to indicate predetermined additional information.
Claims14
An image processing apparatus comprising:
- input means for inputting M-value image data;
- and
- N-value generation means for converting the M-value image data inputted by said input means into N-value image data on the basis of threshold table groups composed of plural kinds of threshold tables of which using order is determined so as to indicate predetermined additional information,
- wherein the value M is larger than the value N.
An image processing method comprising the steps of:
- inputting M-value image data;
- and
- converting the M-value image data inputted in said input step into N-value image data on the basis of threshold table groups composed of plural kinds of threshold tables of which using order is determined so as to indicate predetermined additional information,
- wherein the value M is larger than the value N.
A storing medium which stores an image processing program in a readable state of reading out it from a computer, wherein the image processing program comprising the steps of:
- inputting M-value image data;
- and
- converting the M-value image data inputted in said input step into N-value image data on the basis of threshold table groups composed of plural kinds of threshold tables of which using order is determined so as to indicate predetermined additional information,
- wherein the value M is larger than the value N.
Dependencies are inferred from the claim text.