Image processing device, method and recording medium
An image processing device and pixel technology, which is applied in the direction of image data processing, image data processing, processor architecture/configuration, etc., can solve the problem of narrow color reproduction range, achieve high color scale performance, and improve saturation
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Embodiment approach 1
[0029] figure 1 It is a block diagram showing the configuration of the image processing device 10 according to Embodiment 1 of the present invention. The illustrated image processing device 10 includes input terminals 11r, 11g, and 11b, a color feature value calculation unit 12, a saturation histogram generation unit 13, a saturation conversion function generation unit 14, a saturation conversion unit 15, and a saturation signal delay unit. 16. A hue signal delay unit 17, a lightness signal delay unit 18, a color component value calculation unit 19, and output terminals 20r, 20g, and 20b.
[0030] figure 2 Will figure 1 The illustrated image processing device 10 is shown together with a display unit 40 . The display unit 40 can be constituted by a device generally called a display. Image processing device 10 such as figure 2 Shown can be connected to the display unit 40, the color signals ROUT, GOUT, BOUT output from the output terminals 20r, 20g, 20b as described later...
Embodiment approach 2
[0093] Figure 6 It is a block diagram showing the configuration of an image processing device 10 b according to Embodiment 2 of the present invention. The illustrated image processing device 10b has input terminals 21y, 21cb, and 21cr, a saturation calculation unit 22, a saturation histogram generation unit 13b, a saturation conversion multiplier determination function generation unit 23, a saturation conversion multiplier determination unit 24, Saturation signal delay unit 25, color difference signal delay units 28, 29, luminance signal delay unit 30, multipliers 26, 27, output terminals 31y, 31cb, and 31cr.
[0094] The input terminals 21y, 21cb, and 21cr are input with standard video signals that can be handled by image display devices such as televisions and computers. In this embodiment, the video signal is, for example, a signal composed of a luminance (luminance) signal YIN, a color difference (blue) signal CbIN, and a color difference (red) signal CrIN.
[0095] F...
Embodiment approach 3
[0167] Figure 10 It is a block diagram showing the configuration of an image processing device 10c according to Embodiment 3 of the present invention. The illustrated image processing device 10c has input terminals 11r, 11g, and 11b, a saturation calculation unit 22, a saturation histogram generation unit 13b, a saturation conversion multiplier determination function generation unit 23, a saturation conversion multiplier determination unit 24, Multipliers 26, 27, color feature calculation unit 31, saturation signal delay unit 25, color difference signal delay units 28, 29, luminance signal delay unit 30, color component value calculation unit 32, and output terminals 20r, 20g, 20b.
[0168] The input terminals 11r, 11g, and 11b are input with standard video signals that can be handled by image display devices such as televisions and computers. In this embodiment, the video signals are, for example, red, green, and blue signals RIN, GIN, and BIN.
[0169] Figure 10 The ima...
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