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| isp:sample_awb_implementation_in_c [2018/06/16 03:41] – [AWB::_correctGains()] Igor Yefmov | isp:sample_awb_implementation_in_c [2022/04/04 23:32] (current) – external edit 127.0.0.1 | ||
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| Line 173: | Line 173: | ||
| // A more generic definition of this special condition is: too much red overexposure relative to | // A more generic definition of this special condition is: too much red overexposure relative to | ||
| // green overexposure relative to overall brightness of the picture. The brighter the image the | // green overexposure relative to overall brightness of the picture. The brighter the image the | ||
| - | // more overexposure we can tolerate | + | // more overexposure we can tolerate, but to a certain point |
| bool AWB:: | bool AWB:: | ||
| { | { | ||
| Line 183: | Line 183: | ||
| }else if(m_vars.avgY < 60){ | }else if(m_vars.avgY < 60){ | ||
| return m_vars.oeR > m_vars.oeG * m_vars.avgY * 3; | return m_vars.oeR > m_vars.oeG * m_vars.avgY * 3; | ||
| + | }else if(m_vars.avgY < 85){ | ||
| + | return m_vars.oeR > m_vars.oeG * m_vars.avgY; | ||
| }else{ | }else{ | ||
| - | return m_vars.oeR > m_vars.oeG * m_vars.avgY * 7; | + | return m_vars.oeR > m_vars.oeG * 8; |
| } | } | ||
| }</ | }</ | ||
| Line 213: | Line 215: | ||
| const auto limit = m_ov.getLimit(Val:: | const auto limit = m_ov.getLimit(Val:: | ||
| - | const double precision = 0.1; | + | const double precision = 0.01; |
| if(abs(m_vars.avgU) > precision){ | if(abs(m_vars.avgU) > precision){ | ||
| Line 250: | Line 252: | ||
| ====== Sample usage ====== | ====== Sample usage ====== | ||
| - | This is a copy-paste of the code used in [[manual: | + | This is a copy-paste of the code used in [[manual: |
| <code c++>void ImgAnalyzerDlg:: | <code c++>void ImgAnalyzerDlg:: | ||
| Line 288: | Line 290: | ||
| } | } | ||
| </ | </ | ||
| + | |||
| + | |||
| + | ====== Initial values ====== | ||
| + | |||
| + | Following are the initial defaults for the variables that affect the process of automatic white balance adjustment: | ||
| + | ^ Name (as seen in '' | ||
| + | | '' | ||
| + | |||