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Method and device for adjusting gamma curve of projection device

A gamma curve and projection equipment technology, applied in the field of projection, can solve the problems of lack of convenient self-adaptive solutions and complicated operation, and achieve the effect of improving visual viewing experience and stabilizing color temperature

Active Publication Date: 2022-03-22
峰米(北京)科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the gamma (gamma) setting option of the projection device is simply an option that can be manually adjusted for the user, or it is bound to the image mode, and manual switching is performed according to different film sources or usage scenarios, which is complicated to operate. Lack of an integrated and convenient adaptive solution

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  • Method and device for adjusting gamma curve of projection device
  • Method and device for adjusting gamma curve of projection device

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Embodiment Construction

[0011] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0012] The broad definition of the Gamma value is the Gamma power exponential relationship between the input value and the output value, which is used to compensate for the nonlinear perception of natural brightness by the human eye.

[0013] Like LCD, OLED and other display devices, projection devices also have general gamma compensation, but due to differences in imaging methods (the former is self-illuminating direct imaging, the latter is reflective imaging), projection equipment is not suitable for The projected reflective surface material and the size of the ambient light are more sensitive, and are more easily affected by the two, which will greatly reduce the imaging effect. In addition, different scene mode...

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Abstract

The invention relates to the technical field of projection, and discloses a projection equipment gamma curve adjusting method and equipment, and the method comprises the steps: obtaining the ambient light data of a current projection scene, and determining a first compensation value according to the ambient light data; obtaining reflecting surface data of the current projection curtain, and determining a second compensation value according to the reflecting surface data; determining a third compensation value according to the ambient light data and the reflecting surface data; identifying an image content type of the current projection according to the input signal, and determining a gamma value according to the image content type; and obtaining a target gamma curve according to the first compensation value, the second compensation value, the third compensation value and the gamma value. The invention provides a systematized and scene-based intelligent gamma curve matching scheme for a user, the optimal display effect can be achieved in different environments, different projection screens, different color temperatures and different projected image types under the condition of not needing complicated operation and mastering professional background knowledge, and the user experience is improved. And the overall visual viewing experience of the user is improved.

Description

technical field [0001] The invention relates to the field of projection technology, in particular to a method and device for adjusting a gamma curve of a projection device. Background technique [0002] Projection equipment is a device that can project images or videos onto a screen for display, and is widely used in places such as homes, offices, schools, or movie theaters. [0003] In the prior art, the gamma (gamma) setting option of the projection device is simply an option that can be manually adjusted for the user, or is bound to the image mode, and is manually switched according to different film sources or usage scenarios, which is complicated to operate. Lack of integrated convenient adaptive solutions. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a method and device for adjusting the gamma curve of a projection device in view of the problems existing in the prior art. [0005] In order to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3182H04N9/3179
Inventor 潘克曹山
Owner 峰米(北京)科技有限公司
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