init - 初始化项目

modules/imgcodecs/test/test_common.cpp

@@ -0,0 +1,51 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html
+#include "test_precomp.hpp"
+#include "test_common.hpp"
+
+namespace opencv_test {
+
+static
+Mat generateTestImageBGR_()
+{
+    Size sz(640, 480);
+    Mat result(sz, CV_8UC3, Scalar::all(0));
+
+    const string fname = cvtest::findDataFile("../cv/shared/baboon.png");
+    Mat image = imread(fname, IMREAD_COLOR);
+    CV_Assert(!image.empty());
+    CV_CheckEQ(image.size(), Size(512, 512), "");
+    Rect roi((640-512) / 2, 0, 512, 480);
+    image(Rect(0, 0, 512, 480)).copyTo(result(roi));
+    result(Rect(0,  0, 5, 5)).setTo(Scalar(0, 0, 255));  // R
+    result(Rect(5,  0, 5, 5)).setTo(Scalar(0, 255, 0));  // G
+    result(Rect(10, 0, 5, 5)).setTo(Scalar(255, 0, 0));  // B
+    result(Rect(0,  5, 5, 5)).setTo(Scalar(128, 128, 128));  // gray
+    //imshow("test_image", result); waitKey();
+    return result;
+}
+Mat generateTestImageBGR()
+{
+    static Mat image = generateTestImageBGR_();  // initialize once
+    CV_Assert(!image.empty());
+    return image;
+}
+
+static
+Mat generateTestImageGrayscale_()
+{
+    Mat imageBGR = generateTestImageBGR();
+    CV_Assert(!imageBGR.empty());
+
+    Mat result;
+    cvtColor(imageBGR, result, COLOR_BGR2GRAY);
+    return result;
+}
+Mat generateTestImageGrayscale()
+{
+    static Mat image = generateTestImageGrayscale_();  // initialize once
+    return image;
+}
+
+}  // namespace