| 摘要 |
A color image converting apparatus and color image converting method thereof according to the present invention decides, when it is determined that a signal for a homogeneous color space is present outside a reproducible color space, the necessity of color space compression and the compressing direction for each unit region according to a frequency of occurrence of the signal for each unit region for unit regions present on a plane within an area having constant brightness including the corresponding region, and outputs colors as closest to the original colors as possible preserving color balance and impression of the input color image signal by mapping a unit region decided to be subjected to color space compression onto another region in the compressing direction.
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