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Visual processing device, visual processing method, visual processing program, integrated circuit, display device, imaging device, and mobile information terminal

A processing device and signal processing technology, applied in image data processing, electrical components, image communication, etc., can solve problems such as large-scale circuits

Active Publication Date: 2006-10-18
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in accordance with the realized visual processing, it is necessary to install a dedicated LSI, and there is a disadvantage that the circuit scale is large.

Method used

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  • Visual processing device, visual processing method, visual processing program, integrated circuit, display device, imaging device, and mobile information terminal
  • Visual processing device, visual processing method, visual processing program, integrated circuit, display device, imaging device, and mobile information terminal
  • Visual processing device, visual processing method, visual processing program, integrated circuit, display device, imaging device, and mobile information terminal

Examples

Experimental program
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no. 1 Embodiment approach

[0266] use Figure 1 to Figure 10 , the visual processing device 1 using the two-dimensional LUT as the first embodiment of the present invention will be described. Also, use Figure 11 to Figure 14 , a modification example of the visual processing device will be described. Alternatively, use Figure 15 ~ Figure 23 , a visual processing device that realizes visual processing equivalent to the visual processing device 1 will be described.

[0267] The visual processing device 1 is a device that performs visual processing such as spatial processing and gradation processing of image signals. Visual processing device 1 constitutes a device and an image processing device for performing color processing of zero image signals in devices that process images in, for example, computers, televisions, digital cameras, mobile phones, PDAs, printers, scanners, etc. .

[0268] (visual processing device 1)

[0269] figure 1 , shows a basic configuration of the visual processing device...

no. 2 Embodiment approach

[0672] Use Figure 24~ Figure 39 , the visual processing device 600 as the second embodiment of the present invention will be described.

[0673] The visual processing device 600 is a visual processing device that performs visual processing on an image signal (input signal IS) and outputs a visually processed image (output signal OS), and performs and sets a display device (not shown) that displays the output signal OS. ) environment (hereinafter referred to as the display environment) corresponding to the visual processing device.

[0674] Specifically, the visual processing device 600 is a device that improves the decrease in "visible contrast" of a display image due to the influence of ambient light in the display environment through visual processing utilizing human visual characteristics.

[0675] Visual processing device 600 is a device that processes images such as computers, televisions, digital cameras, mobile phones, PDAs, printers, scanners, etc., and constitutes a...

no. 3 Embodiment approach

[0818] As a third embodiment of the present invention, a visual processing device, a visual processing method, an application example of a visual processing program, and a system to which the visual processing device described in the first and second embodiments described above will be described.

[0819] A visual processing device is, for example, a device that is built into or connected to an image processing machine such as a computer, a television, a digital camera, a mobile phone, a PDA, a printer, a scanner, etc., and performs visual processing of an image, and is implemented as an LSI and other integrated circuits.

[0820] In more detail, each functional module of the above-mentioned embodiment may be integrated into a chip separately, or part or all of them may be integrated into a chip. In addition, although it is referred to as an LSI here, it is also called an IC, a system LSI, a very large-scale LSI, or an extremely large-scale LSI depending on the degree of integ...

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Abstract

The present invention provides a visual processing device having a hardware configuration independent of the implemented visual processing. The visual processing device (1) includes a spatial processing unit (2) and a visual processing unit (3). A spatial processing unit (2) performs predetermined processing on an input signal (IS) and outputs an unsharp signal (US). The visual processing unit (3) is based on the relationship between the input signal (IS) and the unsharp signal (US) given as input, and the output signal (OS) which is the input signal (IS) after visual processing 2D (LUT4), output the output signal (OS).

Description

technical field [0001] The present invention relates to a visual processing device, in particular to a visual processing device for visual processing such as spatial processing or grayscale processing of image signals. Furthermore, another present invention relates to a visual processing method, a visual processing program, an integrated circuit, a display device, a photographing device, and a portable information terminal. Background technique [0002] As visual processing of an image signal of an original image, spatial processing and gradation processing are known. [0003] The so-called spatial processing is a process of performing a pixel of interest using pixels around the pixel of interest to which filtering is applied. In addition, there is known a technique for performing contrast enhancement, dynamic range (DR) compression, and the like of an original image using a spatially processed image signal. In contrast enhancement, the difference between the original imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00H04N1/40
Inventor 山下春生小岛章夫黑泽俊晴桑原康浩渡边辰巳物部祐亮井东武志
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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