Length exposure wide dynamic eclosion fusion method based on gauss filtering

Abstract

The invention discloses a length exposure wide dynamic eclosion fusion method based on gauss filtering, and the method comprises the steps of 1 extracting a high light area in a long exposure image by adjusting an operator in a brightness area; 2 averaging the result obtained from step 1 and conducting binary processing by using the average value to obtain a binary mask comprising 0s and 1s; 3 conducting gauss filtering to the binary mask to get an eclosion effect and obtain an eclosion mask; extracting short exposure information and long exposure information; (4) multiplying the eclosion mask obtained from step 3 by a short exposure image; (5) taking the rest part of an eclosion mask image obtained from step 3 and multiplying it with a long exposure image; adding the result obtained from step 4; making data correction to the result obtained from step 5; and then outputting. <{EN2}>According to the invention, FPGA can be realized; the realization is simple; the occupied hardware resource is little; the fusion method fuses original pixel directly; and the real-time property is high.

Description

technical field [0001] The invention relates to a wide dynamic fusion algorithm, in particular to a long and short exposure wide dynamic feathering fusion method based on Gaussian filtering. Background technique [0002] Among various wide dynamic technologies, the wide dynamic technology based on multi-frame fusion is a relatively common one, and there are various fusion algorithms, such as pyramid fusion, block fusion and other methods. In comparison, these algorithms The implementation is complicated, takes up more hardware resources, and has poor real-time performance, which is not conducive to product realization. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a long-short-exposure wide-dynamic feathering fusion method based on Gaussian filtering that directly fuses long- and short-exposure images and is suitable for hardware implementation without changing the pixel values ​​of the...

AI Technical Summary

Problems solved by technology

[0002] Among various wide dynamic technologies, the wide dynamic technology based on multi-frame fusion is a relatively common one, and there are various fusion algorithms, such as pyramid fusion, block fusion and other methods. In comparison, these algorithms The implementation is complicated, takes up more hardware resources, and has poor real-time performance, which is not conducive to product realization

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