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An exposure method and terminal technology, applied in the field of image processing, can solve problems such as overexposure, affecting the quality of captured images and imaging
Active Publication Date: 2017-05-31
NUBIA TECHNOLOGY CO LTD
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[0003] In the prior art, when the user uses the terminal to take pictures in a dark or night environment, the terminal can increase the exposure by turning on functions such as a flash to complet...
Method used
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Embodiment 1
[0088] An embodiment of the present invention provides an exposure method, such as image 3 As shown, the method may include:
[0089] S101. When photographing, receive a photographing instruction, and collect and photograph an image through an image sensor according to the photographing instruction.
[0090] It should be noted that the exposure method provided in the embodiment of the present invention is implemented in a scene where a photo is taken on a terminal.
[0091] It should be noted that the terminal in the embodiment of the present invention is provided with an image sensor, and the terminal collects and shoots an image through the image sensor, wherein the captured image is captured on the display screen of the terminal after the camera application on the terminal receives the shooting operation. Image.
[0092] Optionally, the terminal may be a camera device, a camera application, and the like. A specific terminal may be an electronic device such as a mobile p...
Embodiment 2
[0129] Such as Figure 9 As shown, the embodiment of the present invention provides a terminal 1, the terminal 1 may include:
[0130] The receiving unit 10 is configured to receive a shooting instruction when taking a picture.
[0131] The acquisition unit 11 is configured to acquire a photographed image through an image sensor according to the photographing instruction.
[0132] The division unit 12 is configured to divide the captured image into N image areas according to a preset number of divisions.
[0133] The acquiring unit 13 is configured to acquire N current brightness values corresponding to the N image areas, where N≥1.
[0134] The determination unit 14 is configured to determine the current exposure brightness value and the N block image areas satisfying the above-mentioned The first brightness value corresponding to the M block image area of the preset bright block threshold, the first brightness value is used to represent the average brightness of the M...
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Abstract
The embodiment of the invention discloses an exposure method. The method comprises the steps: during taking a picture, receiving a photographing instruction of a photographer, and collecting a photographed image by an image sensor; dividing the photographed image into N image regions according to a preset division number, and obtaining N current brightness values corresponding to the N image regions, where N is greater than or equal to 1; according to the N current brightness values, preset bright block threshold and preset corresponding relationship between the image region and photometric weight, determining a current exposure brightness value and a first brightness value corresponding to Mi mage regions that meet the preset bright block threshold in the N image regions, where N is greater than M, and M is greater than or equal to 1; according to the current exposure brightness value, first brightness value, preset average brightness threshold, and preset brightness model, obtaining an adjusted brightness value of the photographed image; and using the adjusted brightness value as an actual exposure brightness of the photographed image for exposure. Therefore, a condition of overexposure can be improved during photographing, as well as improving the quality and effect of the photographed image. The embodiment of the invention further provides a terminal.
Description
technical field [0001] The invention relates to image processing technology in the communication field, in particular to an exposure method and a terminal. Background technique [0002] In recent years, with the rapid development of Internet technology and mobile communication network technology, many terminals such as mobile phones and tablet computers have the camera function, and users can use the terminal to take pictures in any occasion and environment. [0003] In the prior art, when the user uses the terminal to take pictures in a dark or night environment, the terminal can increase the exposure by turning on functions such as a flash to complete the shooting function of the terminal. Turning off the light to adjust the exposure brightness when taking pictures may cause overexposure, which affects the quality and imaging of the captured image. Contents of the invention [0004] In order to solve the above technical problems, the embodiments of the present invention...
Claims
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