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Multi-exposure image fusion method

An image fusion and multi-exposure technology, which is applied in image enhancement, image analysis, image communication, etc., can solve problems such as underexposure and affecting image generation quality, achieve multi-detail, improve low contrast, and improve local contrast.

Active Publication Date: 2021-03-23
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the input original image itself has overexposure or underexposure, multiple images with different exposures calculated based on the camera simulation curve will be more overexposed or underexposed, which will affect the quality of the final fused image generation

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Embodiment Construction

[0031] In order to further illustrate the technical means and effects of the present invention, the preferred embodiments of the present invention and the present invention will be described in detail.

[0032] See figure 1 The present invention provides a multi-exposure image fusion method including the following steps:

[0033] Step S1, input the original image, characterize the original image, to obtain the exposure type of the original image;

[0034] Step S2, adjust the exposure value of the camera simulation curve function according to the exposure type of the original image, generate an exposure image of k sheets, and set k as positive integers;

[0035]Step S3, calculate the brightness mean weight, saturation weight, and contrast weight of each exposure image;

[0036] Step S4, calculate the fusion weight of each exposure image according to the brightness mean weight, saturation weight and contrast weight of each exposure image, and the exposure image of K sheets is not in...

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Abstract

The invention provides a multi-exposure image fusion method. In the multi-exposure image fusion method, the original image is input, the feature analysis is performed on the original image, the exposure type of the original image is obtained, the exposure value of the camera simulation curve function is adjusted according to the exposure type of the original image, and k exposure images with different exposure degrees are generated. Calculate the brightness mean weight, saturation weight and contrast weight of each exposure image respectively, calculate the fusion weight of each exposure image according to the brightness mean weight, saturation weight and contrast weight of each exposure image, and calculate the fusion weight of each exposure image according to the Fusion weight The weighted fusion of k exposure images with different exposures is obtained to obtain the fusion image, and the fusion image is tone-mapped to obtain the target image, which improves the problem that the traditional multi-exposure image fusion method makes the target image gray as a whole and has low contrast, and improves the target image. The local contrast of the image enhances the color of the target image and makes the target image show more details.

Description

Technical field [0001] The present invention relates to the field of display, and more particularly to a multi-exposure image fusion method. Background technique [0002] Thin Film Transdomor, TFT is the main drive element in the liquid crystal display device (LCD) and active matrix drive type organic electroluminescent display devices, direct drive components in AMOLD, direct Relational flat panel display device display performance. [0003] The liquid crystal display in the existing market is a backlight liquid crystal display including a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to incorporate liquid crystal molecules between the thin film transistor array substrate (TFT Array Substrate) and the colorfilter, CF) substrate, and a pixel voltage is applied to the two substrates. And the common voltage, the electric field in which the pixel voltage and the common voltage is formed, and the direction of rotatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/265H04N5/232H04N9/64H04N9/77G06T5/50
CPCH04N5/265H04N9/646H04N9/77G06T5/50G06T2207/10144G06T2207/20221H04N23/951
Inventor 史超超
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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