improved AE, AWB fucntion and color correction. #20
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* add github actions (kendryte#2) * modify lic (kendryte#3) * nncase update to 1.6 (kendryte#4) Co-authored-by: HZ1 <huangziyi010@live.cn> Co-authored-by: wangjianxin-canaan <102512117+wangjianxin-canaan@users.noreply.github.com>
add CONTRIBUTING, issue and PR template
zhangxiaojingCAN
approved these changes
May 13, 2022
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PR描述:
improved AE, AWB fucntion and color correction.
详细描述:
1.解决了AE闪烁问题，加快了AE收敛速度
2.改善了AWB不准确，使得图像偏粉红问题
3.training了D65下的CCM，色彩还原在D65光源下可达到△Eab要求；但因当前ISP逻辑只支持单一CCM，其它色温下依然会存在色彩偏差
4.校正了LSC，边角色偏得到改善，图像不存在明显暗角问题。该问题主要引起的原因应为lens与sensor的CRA角度不匹配导致，当前的解决方案因增加了gain而增大噪声，建议选择质量更佳的camera module.
5.校正了CSC矩阵设置，纠正了因CSC矩阵未归一化所导致的色彩偏差问题
关联issue:
#18