public void TestEmptyTargetImage_Decompress() { Assert.Throws <DirectoryNotFoundException>(() => { m_testerDecompress.Run(new string[] { }, Tester.MapOpenPath("3D.JPG"), Tester.Testcase); }); }
public void TestMarkerList() { jpeg_decompress_struct cinfo = new jpeg_decompress_struct(); using (FileStream input = new FileStream(Tester.MapOpenPath("PARROTS.JPG"), FileMode.Open)) { /* Specify data source for decompression */ cinfo.jpeg_stdio_src(input); const int markerDataLengthLimit = 1000; cinfo.jpeg_save_markers((int)JPEG_MARKER.COM, markerDataLengthLimit); cinfo.jpeg_save_markers((int)JPEG_MARKER.APP0, markerDataLengthLimit); /* Read file header, set default decompression parameters */ cinfo.jpeg_read_header(true); Assert.AreEqual(cinfo.Marker_list.Count, 3); int[] expectedMarkerType = { (int)JPEG_MARKER.APP0, (int)JPEG_MARKER.APP0, (int)JPEG_MARKER.COM }; int[] expectedMarkerOriginalLength = { 14, 3072, 10 }; for (int i = 0; i < cinfo.Marker_list.Count; ++i) { jpeg_marker_struct marker = cinfo.Marker_list[i]; Assert.IsNotNull(marker); Assert.AreEqual(marker.Marker, expectedMarkerType[i]); Assert.AreEqual(marker.OriginalLength, expectedMarkerOriginalLength[i]); Assert.LessOrEqual(marker.Data.Length, markerDataLengthLimit); } } }
public void TestGrayscaleJpegToBitmap() { using (JpegImage jpegImage = new JpegImage(Tester.MapOpenPath("turkey.jpg"))) { testBitmapOutput(jpegImage, "turkey.png"); } }
public void TestJpegImageFromBitmap(string fileName) { string jpegFileName = fileName.Remove(fileName.Length - 4); jpegFileName += ".jpg"; using (Bitmap bmp = new Bitmap(Tester.MapOpenPath(fileName))) testJpegFromBitmap(bmp, jpegFileName); testJpegFromFile(Tester.MapOpenPath(fileName), jpegFileName); }
public void TestDecompressionFromCMYKJpeg() { using (JpegImage jpeg = new JpegImage(Tester.MapOpenPath("ammerland.jpg"))) { Assert.AreEqual(jpeg.BitsPerComponent, 8); Assert.AreEqual(jpeg.ComponentsPerSample, 4); Assert.AreEqual(jpeg.Colorspace, Colorspace.CMYK); Assert.AreEqual(jpeg.Width, 315); Assert.AreEqual(jpeg.Height, 349); testBitmapOutput(jpeg, "ammerland.bmp"); } }
public void TestCompressionResultsSameAsForCJpeg() { using (JpegImage jpeg = new JpegImage(Tester.MapOpenPath("test24.bmp"))) { testJpegOutput(jpeg, "test24.jpg"); CompressionParameters parameters = new CompressionParameters(); parameters.Quality = 25; testJpegOutput(jpeg, parameters, "test24_25.jpg"); parameters = new CompressionParameters(); parameters.SimpleProgressive = true; testJpegOutput(jpeg, parameters, "test24_prog.jpg"); } }
public void TestDecompressionResultsSameAsForDJpeg(string fileName) { string outputFileName = fileName.Replace(".JPG", ".bmp"); testBitmapFromFile(Tester.MapOpenPath(fileName), outputFileName); }