Differences

This shows you the differences between two versions of the page.

--- isp:sample_ae_implementation_in_c [2018/06/17 21:24] – [Helpers] Igor Yefmov
+++ isp:sample_ae_implementation_in_c [2022/04/04 23:32] (current) – external edit 127.0.0.1
@@ Line 292: / Line 292: @@
 }</code>
+====== Sample usage ======
+This is a copy-paste of the code used in [[manual:Aria]] utility for the POC. This code has minimal comments but should be fairly easy to follow:
+<code c++>namespace{
+static CString _corrOp2Txt(AE::CorrOp _op){
+    using op = AE::CorrOp;
+    switch(_op){
+    case op::noop:      return {};
+    case op::inc_exp:   return L"+++ Increasing Exposure";
+    case op::inc_gl:    return L"+++ Increasing GLOBAL gain";
+    case op::inc_green: return L"+++ PANIC! Increasing GREEN gain";
+    case op::dec_exp:   return L"--- Reducing Exposure";
+    case op::dec_gl:    return L"--- Reducing GLOBAL gain";
+    case op::dec_green: return L"--- Reducing GREEN gain";
+    }
+    return {};
+}
+}
+void ImgAnalyzerDlg::_aeInfo()
+{
+    if(((CButton *)(GetDlgItem(IDC_CHECK_ISA_AE)))->GetCheck() != BST_CHECKED){
+        return;
+    }
+    const auto & stats = m_analyzer.getStats();
+    const auto correct = ((CButton*)(GetDlgItem(IDC_CHECK_ISA_AE_CORRECT)))->GetCheck() == BST_CHECKED;
+    const auto aeTolerance = PerPart(GetDlgItemInt(IDC_EDIT_ISA_AE_RIGHT, NULL, FALSE), 1000);
+    const int aeTgtLuma = GetDlgItemInt(IDC_EDIT_ISA_AE_BRIGHTNESS, NULL, FALSE);
+    const PerPart aeHysteresis{GetDlgItemInt(IDC_EDIT_ISA_AE_HYSTERESIS, NULL, FALSE), 100};
+    AE ae{m_fx3.sensor(), stats, aeTolerance, aeTgtLuma, aeHysteresis};
+    const auto rez = ae(correct);
+    // display the information
+    {
+        const PerPart pxUsed{stats.ae.pixels, stats.total.pixels};
+        CString msg;
+        msg.AppendFormat(L"Pixels used: %d (%.1f%%)\n", stats.ae.pixels, pxUsed * 100);
+        msg.AppendFormat(L"Under/over-exposed: %d/%d\n", rez.underExposed, rez.overExposed);
+        msg.AppendFormat(L"BL adj.: %d\n", rez.adjBL);
+        msg.AppendFormat(L"Avg Y.: %d\n", rez.avgY);
+        msg.AppendFormat(L"Brightness adj.: %.2f\n", rez.adjY);
+        msg += _corrOp2Txt(ae.details().op);
+        SetDlgItemTextW(IDC_STATIC_ISA_AE, msg);
+    }
+}
+</code>
+====== Initial values ======
+Following are the initial defaults for the variables that affect the process of automatic image brightness (Black Level, Exposure, Gains) adjustment:
+^ Name (as seen in ''%%ImgAnalyzerDlg%%::_aeInfo()'' above) ^ Value ^
+| ''aeTolerance'' | ''1/1000'' |
+| ''aeTgtLuma'' | ''90'' |
+| ''aeHysteresis'' | ''5/100'' |
+| "center window" dimensions | ''50%'' vertically and horizontally, centered at image's center |

SUB2r

User Tools

Differences