Image processing device and image processing method
An image processing device and pixel-focused technology, applied in image data processing, image communication, 3D image processing, etc., can solve the problems of not reflecting the color of the lighting image, mismatching, etc.
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no. 1 example
[0023] equipment structure
[0024] will refer to figure 1 The block diagram of shows the structure of the image processing apparatus in this embodiment. A microprocessor (CPU) 104 controls a computer via a system bus 109 by executing various programs stored in a read only memory (ROM) 105 and a hard disk drive (HDD) 103 using a random access memory (RAM) 106 as a work memory. The following elements.
[0025] The input unit 101 includes a keyboard and a pointing system such as a mouse, and inputs instructions and data from a user. The display unit 102 is a monitor such as a liquid crystal display, and displays a Graphical User Interface (GUI). The HDD 103 stores various data and programs including image data and data necessary for processing to be described below. The communication unit 107 is a network interface for communicating with external devices via the network 108 . The network 108 may be a wired network, a wireless network, or a serial bus, among others.
[00...
no. 2 example
[0118] An image processing apparatus and an image processing method according to a second embodiment of the present invention will be described below. In the second embodiment, the same reference numerals as those in the first embodiment denote the same parts, and a detailed description of the parts will not be repeated.
[0119] Such as Figure 8 As shown, the first embodiment has described an example of linearly mapping the color transition characteristic 206 into the color gamut 900 . The second embodiment will explain an example of mapping the color transition characteristic 206 like a curve.
[0120] will refer to Figure 10 The color gamut mapping of gloss components in the second embodiment is explained. Such as Figure 10 As shown, same as the first embodiment, the maximum gloss component value Lab sp max maps into color gamut 900 (eg, the color gamut boundary where the color difference is the smallest), thereby mapping color transition characteristic 206 into col...
no. 3 example
[0128] An image processing apparatus and an image processing method according to a third embodiment of the present invention will be described below. In the third embodiment, the same reference numerals as those in the first and second embodiments denote the same parts, and a detailed description of the parts will not be repeated.
[0129]In the first embodiment and the second embodiment, the color transition characteristic 206 from the diffuse component to the glossy component represents the color at each exit angle with respect to the 45° incident light. The third embodiment will explain the method of faithfully performing the expression of the diffuse component and the glossy component of the printed material in the actual environment and the color transition from the diffuse component to the glossy component using the color transition characteristic corresponding to an arbitrary incident angle. simulation.
[0130] will refer to Figure 12 The flowchart explains the deta...
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