Design and implementation of picture preview scheme in HDMI microscope camera

When the camera is actually used, it is necessary to provide the user with a picture preview function on the HDMI interface, that is, to browse multiple pictures on one interface. Based on the JPEG format specification and Exif specification, combined with multi-thread decoding display technology, this paper proposes a new quick preview scheme for multiple pictures. Even if you switch and preview multiple ultra-high-definition pictures by this shceme, the refresh display speed is very fast, and it is easy to maintain later and has good stability.