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Image processing device, method and system, and computer readable medium

An image processing device and image processing technology, applied in image data processing, computing, image communication and other directions, can solve problems such as unnatural images, and achieve the effect of easy calculation

Pending Publication Date: 2021-09-28
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, for example, when there are many dark pixels in the processed image, the image after image processing sometimes becomes an unnatural result

Method used

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  • Image processing device, method and system, and computer readable medium
  • Image processing device, method and system, and computer readable medium
  • Image processing device, method and system, and computer readable medium

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0079] First, the first embodiment will be described.

[0080] In the first embodiment, feature quantities are extracted for the processed image H and the sample image M, respectively. This feature amount is calculated using the luminance value of each image as the weight W. Furthermore, when the feature amount of the image to be processed H is matched with the feature amount of the sample image M, image processing can be performed in which the image of the image processed image H' becomes the image of the sample image M.

[0081] Figure 4 It is a block diagram showing an example of the functional configuration of the image processing device 10 in the first embodiment.

[0082] As shown in the figure, the image processing device 10 has: a color conversion unit 11, which acquires image information (input image data) of an image to be processed H and a sample image M, performs color conversion, and sets a chroma component and a brightness component; An extraction section 12 th...

no. 2 Embodiment approach

[0136] Next, a second embodiment will be described.

[0137] In the first embodiment, the luminance components I of the image to be processed H and the sample image M are directly set as the weight W as shown in the above-mentioned formula (1). On the other hand, in the second embodiment, the weight W is calculated from the brightness component I without directly setting the brightness component I as the weight W.

[0138] Figure 6 (a) to (b) are diagrams showing the relationship between the luminance component I and the weight W.

[0139] Here, the horizontal axis represents the luminance component I, and the vertical axis represents the weight W. In addition, here, in the processed image H and the sample image M, the relationship between the luminance component I and the weight W is shown separately. That is, the processed image H is shown with It(i,j) on the horizontal axis and Wt(i,j) on the vertical axis. In addition, the sample image M is illustrated with Ir(i,j) on...

no. 3 Embodiment approach

[0150] Next, a third embodiment will be described.

[0151] In the third embodiment, the scene of the processed image H and the sample image M is analyzed, and the weight W is changed according to the scene.

[0152] Figure 7 It is a block diagram showing an example of the functional configuration of the image processing device 10 in the third embodiment.

[0153] Such as Figure 7 As shown in the figure, the image processing device 10 and Figure 4 Compared with the image processing device 10 shown in , the difference is that a scene analysis unit 14 is added. In addition, the functions of the other color conversion unit 11 , feature value extraction unit 12 , and component adjustment unit 13 are the same for both. Therefore, the following description will focus on the scene analysis unit 14 .

[0154] The scene analysis unit 14 analyzes the scene of the sample image M. Specifically, the scene analysis unit 14 determines whether or not the scene of the sample image M i...

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Abstract

The invention provides an image processing device, method and system, and a computer readable medium. The image processing apparatus includes a processor configured to extract a component related to luminance for a sample image and a processed image that is to undergo image processing to make an impression of the processed image consistent with the sample image, extract feature values of the processed image and the sample image by attaching a weight to a pixel value of each pixel forming the processed image and the sample image based on the weight of the component related to the luminance, and adjust the feature value of the processed image to the feature value of the sample image.

Description

technical field [0001] The present disclosure relates to an image processing device, an image processing method, an image processing system, and a computer-readable medium. Background technique [0002] In recent years, due to the popularization of digital cameras and the like, the number of users who shoot and view digital images has increased. In addition, due to the spread of smartphones and tablet PCs, there is an increasing need for more intuitive operations to perform image quality adjustments previously performed using PC (Personal Computer) image editing software to obtain desired images. [0003] Regarding the image quality adjustment of digital images, for example, in RGB, CIEL * a * b * , HSV and other color spaces to adjust the component values ​​​​of chroma, brightness, hue, chroma and their contrast. Among these, the user may designate a sample image as a sample, and perform image processing for making the image quality of the image to be processed match th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/407H04N1/46H04N1/60
CPCH04N1/407H04N1/6027H04N1/46G06T5/50G06T5/40G06T2207/10024G06T5/92G06T5/94
Inventor 鸣海翔太
Owner FUJIFILM BUSINESS INNOVATION CORP
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