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Information processing apparatus, display device, and information processing method

A technology of information processing equipment and scope, applied in image communication, static indicator, cathode ray tube indicator, etc., can solve the problem of reducing the visibility of graphics

Inactive Publication Date: 2021-07-16
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reduces the visibility of displayed graphs such as histograms or waveform monitor images

Method used

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  • Information processing apparatus, display device, and information processing method
  • Information processing apparatus, display device, and information processing method
  • Information processing apparatus, display device, and information processing method

Examples

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no. 1 example

[0032] Referring to the drawings, a display device (information processing apparatus) of a first embodiment will now be described. The display device of the present embodiment displays a display image based on an input image on which a waveform monitor image related to the input image (display image) is superimposed to allow the user to recognize brightness in the input image. In the present embodiment, the waveform monitor image is an image of a graph showing the relationship between brightness and position in the input image. In this embodiment, the luminance is the data luminance that an image has as data.

[0033] Display structure

[0034] figure 1 is a diagram showing the configuration of the display device of this embodiment. The display device includes a gradation characteristic conversion unit 101 , a system control unit 102 , a data acquisition unit 103 , a scale setting unit 104 , a generation unit 105 , an overlapping unit 106 , a correction unit 107 and a disp...

no. 2 example

[0075] The display device of the second embodiment is based on the linear image (see Figure 7A ) to generate a histogram (brightness histogram), and set the scale of the waveform monitor image based on the histogram.

[0076] Image 6 The structure of the display device of the second embodiment is shown. The display device of the present embodiment includes a histogram obtaining unit 201 in addition to the functional units of the first embodiment. Only the differences from the display device of the first embodiment will be described below.

[0077] The histogram obtaining unit 201 obtains the brightness of each pixel in the linear image 151, and generates histogram information 251 based on the brightness. Such as Figure 7A As shown, in the histogram information 251, the horizontal axis represents brightness, and the vertical axis represents the number of pixels corresponding to each brightness. Figure 7A An example of indicates that in a linear image 151, many pixels h...

no. 3 example

[0085] The display device of the third embodiment displays two luminance ranges overlapping each other in a waveform monitor image.

[0086] Figure 8 The structure of the display device of the third embodiment is shown. The display device of this embodiment further includes a data classification unit 301 in addition to the functional units of the first embodiment. Only the differences between this embodiment and the first embodiment will be described below.

[0087] The data classification unit 301 classifies the obtained data 155 into data having at least a predetermined luminance and data having no more than a predetermined luminance. In the present embodiment, the data classification unit 301 classifies the brightness of the pixels along the horizontal line indicated by the mode setting information 152 into at least 1000 cd / m 2 Brightness data and not more than 1000cd / m 2 brightness data. The data classification unit 301 outputs the classified two pieces of data to th...

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Abstract

The invention relates to an information processing apparatus, a display device, and an information processing method. The information processing apparatus includes: an obtaining unit configured to obtain an input image; and a generation unit configured to generate a graphic image indicating a brightness in the input image, the graphic image having at least an axis representing the brightness, in a case where the graphic image indicating a brightness range including the first range and the second range is generated, a generation unit generating the graphic image such that a size of the second range is smaller than a size of the first range; the first range is a brightness range that does not exceed the predetermined brightness, and the second range is a brightness range of at least the predetermined brightness and has a brightness span of at least the brightness span of the first range.

Description

technical field [0001] The present invention relates to an information processing device, a display device, and an information processing method. Background technique [0002] A high dynamic range (HDR) image having a wider dynamic range than a standard dynamic range (SDR) is now widely used. For HDR images, a hybrid log-gamma signal (herein referred to as HLG signal) defined in the ITU Rec.2100 standard can be used. The ITU Rec.2100 standard stipulates that in the standard viewing environment (reference viewing environment), the display peak brightness of the HLG signal is 1000cd / m 2 . [0003] For the HLG data value (gray value) represented by 10 bits of the HLG signal, it is usually represented by a narrow range, where the brightness range is 0 to 1000cd / m 2 Corresponds to a narrower range than the HLG data value range of 0 to 1023. For example, if Figure 12A As shown, HLG data value 940 corresponds to 1000cd / m 2 . [0004] In addition, the standardization of techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/202H04N5/205
CPCH04N5/202H04N5/205G09G5/005G09G5/377G09G2320/0626G09G2320/0673G09G2360/16G09G3/20G09G2320/0233
Inventor 铃木康夫松浦易广
Owner CANON KK
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