Image processing method and device
An image processing and image technology, applied in character and pattern recognition, instruments, computing, etc., can solve problems such as inability to see, affect product design, and degrade face image quality, and achieve the effect of improving dynamic range
Active Publication Date: 2017-05-24
LENOVO (BEIJING) LTD
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Problems solved by technology
[0002] Video sampling devices (such as computer camera modules) can easily reach the limits of image sensors in extreme light environments, resulting in negative user experience
For example, the use of backlighting, dark light, strong light, etc. for the face will cause the decline in the quality of the face or even make it impossible to see clearly.
[0003] In view of this situation, a possible solution is to use high-end sensors, but this will bring problems such as high price, large volume and affecting product design.
In addition, another possible solution is to add fill light, but this also has problems affecting product design, and the usage scenarios are limited
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[0059] Hereinafter, various preferred embodiments of the present invention will be described with reference to the accompanying drawings. The following description with reference to the accompanying drawings is provided to help understand the exemplary embodiments of the present invention defined by the claims and their equivalents. It includes various specific details to help understanding, but they can only be regarded as exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Moreover, in order to make the description more clear and concise, detailed descriptions of well-known functions and configurations in the art will be omitted.
[0060] Automatic exposure is one of the most important tasks of video capture equipment. The exposure mode used by ordinary video capture equipment is basically the central area expos...
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Disclosed is an image processing method and image processing equipment. The image processing method comprises the following steps: (a) imaging target objects; (b) extracting one or more frames of images every a first predetermined period to perform a face identification; (c) determining human face regions if faces are detected, performing image analytical judgment in the human face regions to obtain a plurality of parameters and applying the plurality of obtained parameters to the entire picture regions of the images; (d) correcting color gradations of the non-human face regions in the images; and (e) not processing the images if the faces are not detected.
Description
Technical field [0001] The invention relates to an image processing method and equipment. More specifically, it relates to a wide dynamic range image processing method and device based on real-time face quality priority. Background technique [0002] Video sampling equipment (such as computer camera modules) in extreme light environments can easily reach the limits of all aspects of the image sensor, causing a negative experience for users. For example, the use of backlighting, dark light, strong light exposure, etc. for a human face will cause the image quality of the human face to decrease or even make it impossible to see clearly. [0003] In view of this situation, one possible solution is to use high-end sensors, but this will cause problems such as high prices and larger volumes that affect product design. In addition, another possible solution can be to add a fill light, but this also has a problem that affects the product design, and the usage scenarios are limited. Summ...
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IPC IPC(8): G06K9/00G06K9/46
Inventor 于宙
Owner LENOVO (BEIJING) LTD