Delivery manner of image processing parameter, with the data of the look-up table which accesses in order to obtain the value of the graphics data after the amendment treating which corresponds to the value

摘要

PROBLEM TO BE SOLVED: To easily revise an image processing parameter that is once set. SOLUTION: The electronic camera 2 and a computer 4 mutually deliver data of a lookup table referred to obtain image data after correction processing corresponding to image data before the correction processing together with control point information that is referred when a characteristic curve to define the conversion characteristic of the lookup table is generated by an interpolation arithmetic operation. In the case of revising the conversion characteristic of the lookup table of the electronic camera 2, the computer 4 reads the control point information and the data of the lookup table from the electronic camera 2. A CPU generates a characteristic curve on the basis of the read control point information and displays it on a display device 6. A user operates a mouse 10 to correct this characteristic curve. An EEPROM of the electronic camera 2 stores the control point information together with the data of the lookup table generated on the basis of the corrected characteristic curve.