Parallel video image dynamic range enhancement device and method

[0033] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] The invention provides a parallel video image dynamic range enhancement device, which includes a scalar processing unit, a local memory, a memory access control unit, a general buffer, a parallel arithmetic logic unit, a state machine, and a data interleaving unit;

[0035] The scalar processing unit SPU is used to count the gray histogram of the image and calculate the gray mapping function;

[0036] Local memory, which supports parallel access, is used to save input and output image data;

[0037] A memory access control unit is used for data exchange between the local memory and the general buffer;

[0038] A general-purpose buffer, used to buffer all the parameters and intermediate results required for a compl