Method for dynamically adjusting image definition and image processing device thereof
An image processing device and technology for image clarity, applied in image communication, standard conversion, electrical components, etc., can solve problems such as obtrusive vision, too distinct roots, and distinct leaves and leaves, and achieve the effect of better user experience
Active Publication Date: 2021-04-06
ACER INC
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Problems solved by technology
In this case, the grass in the above local area may appear too sharp, while the leaves may appear too fragmented, which may make the viewer feel that there is an abnormally sharp area in the entire display screen. cause visual shock
In other words, no matter using a larger or smaller dynamic range, it is difficult to achieve a better display effect
[0003] However, if you want to locally adjust the image definition, you must effectively avoid the image area that is prone to side effects after adjustment, or find more effective adjustment parameters, otherwise the above-mentioned defects may still occur
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[0026] Please refer to figure 1 , which is a functional block diagram of an image processing device according to an embodiment of the present invention. In this embodiment, the image processing device 100 may be a smart phone, a personal computer (PC), a notebook computer (notebook PC), a netbook computer (netbook PC), a tablet computer (tablet PC), a TV, a game machine (game console), portable multimedia player (portable multimedia player), or other devices that can display images for users to watch.
[0027] Such as figure 1 As shown in the embodiment, the image processing device 100 includes a storage circuit 102 and a processor 104, and the image processing device 100 is coupled to a display 199 to configure the display 199 to display a desired image frame. The display 199 may be a liquid crystal display (Liquid-Crystal Display, LCD), a plasma display, a vacuum fluorescent display, a light-emitting diode (Light-Emitting Diode, LED) display, a field emission display (Fiel...
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The invention provides a method for dynamically adjusting image clarity and an image processing device thereof. The method includes: obtaining an image frame, and searching for a preset object in the image frame; evaluating the first sharpness of the preset object; if the first sharpness of the preset object is lower than a sharpness threshold value, calculating the The difference between the first sharpness and the sharpness threshold; the image frame is divided into multiple blocks, and the risk value and effect value of increasing the second sharpness of each block are evaluated; the difference, the risk value and the effect value are input to the classification model to generate a definition setting value; and adjusting the definition of the image frame displayed on the display according to the definition setting value.
Description
technical field [0001] The invention relates to an image processing method and its device, in particular to a method for dynamically adjusting image definition and its image processing device. Background technique [0002] In the existing image display technology, the display can be controlled by software or firmware to change the definition of the displayed image. However, most of the aforementioned methods only use a single parameter to globally adjust the definition of the displayed image of the display. In this case, if too small dynamic range is used for the aforementioned parameters (that is, the adjustment range of sharpness is not large), the sharpness of the image of a local area in the display screen may not be effectively improved. On the other hand, if an excessively large dynamic range is used for the aforementioned parameters (that is, the sharpness adjustment range is relatively large), the image of a local area in the display screen may be too sharp, resulti...
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IPC IPC(8): H04N7/01H04N21/2343H04N21/4402
CPCH04N7/0117H04N21/234363H04N21/440263
Inventor 林子杰苏镇港
Owner ACER INC