Method and device for zooming image
An image and zoom factor technology, applied in the field of digital images, which can solve the problems of inability to enlarge processing, reduce the flexibility of business implementation, and asymmetric zoom functions.
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[0073] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0074] When implementing image scaling processing based on hardware, in order to ensure that the hardware can provide both reduction and enlargement functions, and can complete the scaling processing of different multiples, the present invention provides a method for zooming images. The core idea of the method includes: According to the characteristics of the hardware implementation, firstly generate a zoom factor table in advance, which includes discrete coefficient values corresponding to multiple reduction multiples and discrete coefficient values corresponding to multiple zoom multiples respectively; and then realize image zoom processing The pre-generated scaling factor table is loaded on the hardware, and when the image scaling...
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