Stacking method and system of video image with adjustable transparence based on OMAP chip
A technology of video image and superimposition method, which is applied in the parts of TV system, image communication, TV, etc., can solve the problems of poor editing flexibility and high development cost, achieve simple calculation, avoid complex processing process, improve flexibility and convenience sexual effect
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[0019] Below in conjunction with accompanying drawing and example the present invention is further described
[0020] The user selects the OSD image to be superimposed from the current directory of the program through the interactive interface, and sets the overall mixed transparency value parameter alpha, where the value ranges from (0 to 255), a total of 256 levels. The selected OSD picture data will be loaded into the OSD window, and the width parameter i and height parameter j of the picture will be recorded.
[0021] The real-time video data transparency value is alpha, and the OSD image transparency value is 255-alpha. See figure 2 , a test picture with a size of 400x272, which is used to superimpose and fuse with real-time video images, from which it can be seen that the OSD test picture is a completely non-transparent picture, and the transparency value is 255 by default.
[0022] Obtain the performance parameters of the camera device, read the format of the capture...
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