markus / KCOM / Common / ImageSourceHelper.cs @ 9d5b4bc2
이력 | 보기 | 이력해설 | 다운로드 (11.3 KB)
| 1 | cdfb57ff | taeseongkim | using System; |
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| 2 | using System.Collections.Generic; |
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| 3 | using System.Linq; |
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| 4 | b60e844d | taeseongkim | using System.Net.Http; |
| 5 | cdfb57ff | taeseongkim | using System.Text; |
| 6 | using System.Threading.Tasks; |
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| 7 | using System.Windows.Media; |
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| 8 | using System.Windows.Media.Imaging; |
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| 9 | |||
| 10 | namespace KCOM.Common |
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| 11 | {
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| 12 | public static class ImageSourceHelper |
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| 13 | {
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| 14 | 92442e4a | taeseongkim | public static async System.Threading.Tasks.Task<BitmapImage> GetDownloadImageAsync(Uri uri, double pageWidth, double pageHeight) |
| 15 | cdfb57ff | taeseongkim | {
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| 16 | System.Net.Http.HttpClient httpClient = null; |
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| 17 | System.IO.Stream responseStream = null; |
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| 18 | System.IO.MemoryStream memoryStream = null; |
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| 19 | BitmapImage image = null; |
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| 20 | |||
| 21 | try |
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| 22 | {
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| 23 | using (httpClient = new System.Net.Http.HttpClient()) |
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| 24 | {
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| 25 | using (responseStream = await httpClient.GetStreamAsync(uri)) |
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| 26 | {
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| 27 | using (memoryStream = new System.IO.MemoryStream()) |
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| 28 | {
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| 29 | a1142a6b | taeseongkim | System.Diagnostics.Debug.WriteLine(uri); |
| 30 | cdfb57ff | taeseongkim | |
| 31 | await responseStream.CopyToAsync(memoryStream); |
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| 32 | |||
| 33 | a1142a6b | taeseongkim | memoryStream.Position = 0; |
| 34 | |||
| 35 | cdfb57ff | taeseongkim | image = new BitmapImage(); |
| 36 | image.BeginInit(); |
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| 37 | a1142a6b | taeseongkim | |
| 38 | //image.CreateOptions = BitmapCreateOptions.None; |
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| 39 | cdfb57ff | taeseongkim | image.CacheOption = BitmapCacheOption.OnLoad; |
| 40 | a1142a6b | taeseongkim | image.UriSource = uri; |
| 41 | cdfb57ff | taeseongkim | image.StreamSource = memoryStream; |
| 42 | image.DecodePixelWidth = (int)pageWidth; |
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| 43 | image.DecodePixelHeight = (int)pageHeight; |
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| 44 | image.EndInit(); |
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| 45 | image.Freeze(); |
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| 46 | a1142a6b | taeseongkim | System.Diagnostics.Debug.WriteLine("Freeze : " + uri);
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| 47 | cdfb57ff | taeseongkim | } |
| 48 | } |
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| 49 | } |
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| 50 | } |
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| 51 | catch (Exception ex) |
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| 52 | {
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| 53 | throw new Exception("Image Load Error ", ex);
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| 54 | } |
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| 55 | finally |
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| 56 | {
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| 57 | httpClient?.Dispose(); |
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| 58 | responseStream?.Dispose(); |
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| 59 | memoryStream?.Dispose(); |
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| 60 | } |
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| 61 | a1142a6b | taeseongkim | |
| 62 | return image; |
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| 63 | cdfb57ff | taeseongkim | } |
| 64 | 566f0526 | taeseongkim | |
| 65 | adce8360 | humkyung | public static BitmapImage GetDownloadImage(string uri) |
| 66 | {
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| 67 | return GetDownloadImage(new Uri(uri)); |
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| 68 | } |
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| 69 | |||
| 70 | public static BitmapImage GetDownloadImage(Uri uri) |
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| 71 | {
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| 72 | BitmapImage resultImage = new BitmapImage(); |
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| 73 | |||
| 74 | resultImage.BeginInit(); |
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| 75 | resultImage.CacheOption = BitmapCacheOption.OnLoad; |
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| 76 | resultImage.UriCachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.Default); |
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| 77 | resultImage.UriSource = uri; |
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| 78 | resultImage.EndInit(); |
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| 79 | |||
| 80 | resultImage.DownloadProgress += (ex, arg) => |
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| 81 | {
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| 82 | System.Diagnostics.Debug.WriteLine($"download Image : {arg.Progress}%");
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| 83 | }; |
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| 84 | |||
| 85 | while (resultImage.IsDownloading) |
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| 86 | {
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| 87 | System.Windows.Forms.Application.DoEvents(); //Method from thread linked above |
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| 88 | System.Diagnostics.Debug.WriteLine("doEvent");
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| 89 | } |
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| 90 | |||
| 91 | resultImage.Freeze(); |
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| 92 | return resultImage; |
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| 93 | } |
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| 94 | |||
| 95 | 566f0526 | taeseongkim | public static byte[] CopyPixels(BitmapSource image) |
| 96 | {
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| 97 | byte[] result = new byte[image.PixelWidth * image.PixelHeight * 4]; |
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| 98 | image.CopyPixels(result, image.PixelWidth * 4, 0); |
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| 99 | |||
| 100 | return result; |
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| 101 | } |
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| 102 | |||
| 103 | public static byte[] SetBrightness(int brightness, byte[] pixels) |
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| 104 | {
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| 105 | for (int i = 0; i < pixels.Length / 4; ++i) |
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| 106 | {
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| 107 | byte b = pixels[i * 4]; |
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| 108 | byte g = pixels[i * 4 + 1]; |
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| 109 | byte r = pixels[i * 4 + 2]; |
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| 110 | byte a = pixels[i * 4 + 3]; |
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| 111 | |||
| 112 | if (r != 255 || g != 255 || b != 255 || a == 255) |
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| 113 | {
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| 114 | b = (byte)(b + brightness); |
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| 115 | g = (byte)(g + brightness); |
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| 116 | r = (byte)(r + brightness); |
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| 117 | ///a = (byte)(a + brightness); |
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| 118 | |||
| 119 | if (r < 0) r = 1; |
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| 120 | if (r > 255) r = 255; |
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| 121 | |||
| 122 | if (g < 0) g = 1; |
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| 123 | if (g > 255) g = 255; |
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| 124 | |||
| 125 | if (b < 0) b = 1; |
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| 126 | if (b > 255) b = 255; |
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| 127 | |||
| 128 | pixels[i * 4] = b; |
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| 129 | pixels[i * 4 + 1] = g; |
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| 130 | pixels[i * 4 + 2] = r; |
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| 131 | } |
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| 132 | } |
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| 133 | |||
| 134 | return pixels; |
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| 135 | } |
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| 136 | |||
| 137 | public static byte[] SetBrightnessAndContrast(int brightness,double contrast, byte[] pixels) |
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| 138 | {
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| 139 | 997071b8 | taeseongkim | System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch(); |
| 140 | stopwatch.Start(); |
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| 141 | |||
| 142 | 566f0526 | taeseongkim | if (contrast < -100) contrast = -100; |
| 143 | if (contrast > 100) contrast = 100; |
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| 144 | contrast = (100.0 + contrast) / 100.0; |
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| 145 | contrast *= contrast; |
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| 146 | |||
| 147 | for (int i = 0; i < pixels.Length / 4; ++i) |
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| 148 | {
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| 149 | byte b = pixels[i * 4]; |
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| 150 | byte g = pixels[i * 4 + 1]; |
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| 151 | byte r = pixels[i * 4 + 2]; |
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| 152 | byte a = pixels[i * 4 + 3]; |
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| 153 | |||
| 154 | 997071b8 | taeseongkim | //System.Diagnostics.Debug.WriteLineIf(i< 4, $"B :{b} G : {g} r : {r}");
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| 155 | |||
| 156 | if (r != 255 || g != 255 || b != 255) |
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| 157 | 566f0526 | taeseongkim | {
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| 158 | b = (byte)(b + brightness); |
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| 159 | g = (byte)(g + brightness); |
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| 160 | r = (byte)(r + brightness); |
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| 161 | ///a = (byte)(a + brightness); |
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| 162 | |||
| 163 | if (r < 0) r = 1; |
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| 164 | if (r > 255) r = 255; |
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| 165 | |||
| 166 | if (g < 0) g = 1; |
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| 167 | if (g > 255) g = 255; |
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| 168 | |||
| 169 | if (b < 0) b = 1; |
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| 170 | if (b > 255) b = 255; |
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| 171 | |||
| 172 | double pR = r / 255.0; |
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| 173 | pR -= 0.5; |
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| 174 | pR *= contrast; |
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| 175 | pR += 0.5; |
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| 176 | pR *= 255; |
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| 177 | if (pR < 0) pR = 0; |
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| 178 | if (pR > 255) pR = 255; |
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| 179 | |||
| 180 | double pG = g / 255.0; |
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| 181 | pG -= 0.5; |
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| 182 | pG *= contrast; |
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| 183 | pG += 0.5; |
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| 184 | pG *= 255; |
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| 185 | if (pG < 0) pG = 0; |
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| 186 | if (pG > 255) pG = 255; |
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| 187 | |||
| 188 | double pB = b / 255.0; |
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| 189 | pB -= 0.5; |
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| 190 | pB *= contrast; |
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| 191 | pB += 0.5; |
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| 192 | pB *= 255; |
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| 193 | if (pB < 0) pB = 0; |
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| 194 | if (pB > 255) pB = 255; |
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| 195 | |||
| 196 | pixels[i * 4] = (byte)pB; |
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| 197 | pixels[i * 4 + 1] = (byte)pG; |
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| 198 | pixels[i * 4 + 2] = (byte)pR; |
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| 199 | fc9da8df | taeseongkim | } |
| 200 | 566f0526 | taeseongkim | } |
| 201 | |||
| 202 | 997071b8 | taeseongkim | System.Diagnostics.Debug.WriteLine($"일반 : {stopwatch.Elapsed.ToString()}");
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| 203 | |||
| 204 | return pixels; |
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| 205 | } |
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| 206 | |||
| 207 | public static byte[] SetBrightnessAndContrastLinp(int brightness, double contrast, byte[] pixels) |
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| 208 | {
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| 209 | System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch(); |
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| 210 | stopwatch.Start(); |
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| 211 | |||
| 212 | if (contrast < -100) contrast = -100; |
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| 213 | |||
| 214 | if (contrast > 100) contrast = 100; |
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| 215 | |||
| 216 | contrast = (100.0 + contrast) / 100.0; |
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| 217 | |||
| 218 | contrast *= contrast; |
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| 219 | |||
| 220 | Parallel.ForEach(SteppedIntegerList(pixels,0, pixels.Length, 4,4),new ParallelOptions {MaxDegreeOfParallelism = 5 }, item=>
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| 221 | {
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| 222 | var pixel = item.ToList(); |
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| 223 | |||
| 224 | byte b = pixel[0].Value; |
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| 225 | byte g = pixel[1].Value; |
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| 226 | byte r = pixel[2].Value; |
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| 227 | byte a = pixel[3].Value; |
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| 228 | |||
| 229 | //System.Diagnostics.Debug.WriteLineIf(pixel[0].Key < 4, $"B :{b} G : {g} r : {r}");
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| 230 | |||
| 231 | if (r != 255 || g != 255 || b != 255) |
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| 232 | {
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| 233 | b = (byte)(b + brightness); |
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| 234 | g = (byte)(g + brightness); |
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| 235 | r = (byte)(r + brightness); |
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| 236 | ///a = (byte)(a + brightness); |
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| 237 | |||
| 238 | if (r < 0) r = 1; |
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| 239 | if (r > 255) r = 255; |
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| 240 | |||
| 241 | if (g < 0) g = 1; |
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| 242 | if (g > 255) g = 255; |
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| 243 | |||
| 244 | if (b < 0) b = 1; |
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| 245 | if (b > 255) b = 255; |
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| 246 | |||
| 247 | double pR = r / 255.0; |
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| 248 | pR -= 0.5; |
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| 249 | pR *= contrast; |
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| 250 | pR += 0.5; |
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| 251 | pR *= 255; |
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| 252 | if (pR < 0) pR = 0; |
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| 253 | if (pR > 255) pR = 255; |
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| 254 | |||
| 255 | double pG = g / 255.0; |
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| 256 | pG -= 0.5; |
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| 257 | pG *= contrast; |
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| 258 | pG += 0.5; |
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| 259 | pG *= 255; |
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| 260 | if (pG < 0) pG = 0; |
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| 261 | if (pG > 255) pG = 255; |
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| 262 | |||
| 263 | double pB = b / 255.0; |
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| 264 | pB -= 0.5; |
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| 265 | pB *= contrast; |
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| 266 | pB += 0.5; |
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| 267 | pB *= 255; |
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| 268 | if (pB < 0) pB = 0; |
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| 269 | if (pB > 255) pB = 255; |
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| 270 | |||
| 271 | pixels[pixel[0].Key] = (byte)pB; |
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| 272 | pixels[pixel[1].Key] = (byte)pG; |
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| 273 | pixels[pixel[2].Key] = (byte)pR; |
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| 274 | } |
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| 275 | }); |
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| 276 | |||
| 277 | System.Diagnostics.Debug.WriteLine($"Linq : {stopwatch.Elapsed.ToString()}");
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| 278 | |||
| 279 | 566f0526 | taeseongkim | return pixels; |
| 280 | } |
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| 281 | |||
| 282 | 997071b8 | taeseongkim | public static IEnumerable<Dictionary<int,T>> SteppedIntegerList<T>(T[] array, int startIndex,int endEndex, int stepSize,int TakeSize) |
| 283 | {
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| 284 | for (int i = startIndex; i < endEndex; i += stepSize) |
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| 285 | {
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| 286 | Dictionary<int, T> result = new Dictionary<int, T>(); |
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| 287 | |||
| 288 | for (int j = 0; j < TakeSize; j++) |
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| 289 | {
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| 290 | result.Add(j, array[i + j]); |
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| 291 | } |
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| 292 | |||
| 293 | yield return result; |
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| 294 | } |
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| 295 | } |
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| 296 | |||
| 297 | 566f0526 | taeseongkim | public static byte[] SetContrast(double contrast, byte[] pixels) |
| 298 | {
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| 299 | if (contrast < -100) contrast = -100; |
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| 300 | if (contrast > 100) contrast = 100; |
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| 301 | contrast = (100.0 + contrast) / 100.0; |
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| 302 | contrast *= contrast; |
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| 303 | |||
| 304 | for (int i = 0; i < pixels.Length / 4; ++i) |
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| 305 | {
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| 306 | byte b = pixels[i * 4]; |
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| 307 | byte g = pixels[i * 4 + 1]; |
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| 308 | byte r = pixels[i * 4 + 2]; |
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| 309 | byte a = pixels[i * 4 + 3]; |
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| 310 | |||
| 311 | if (r != 255 || g != 255 || b != 255 || a == 255) |
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| 312 | {
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| 313 | double pR = r / 255.0; |
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| 314 | pR -= 0.5; |
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| 315 | pR *= contrast; |
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| 316 | pR += 0.5; |
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| 317 | pR *= 255; |
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| 318 | if (pR < 0) pR = 0; |
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| 319 | if (pR > 255) pR = 255; |
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| 320 | |||
| 321 | double pG = g / 255.0; |
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| 322 | pG -= 0.5; |
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| 323 | pG *= contrast; |
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| 324 | pG += 0.5; |
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| 325 | pG *= 255; |
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| 326 | if (pG < 0) pG = 0; |
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| 327 | if (pG > 255) pG = 255; |
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| 328 | |||
| 329 | double pB = b / 255.0; |
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| 330 | pB -= 0.5; |
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| 331 | pB *= contrast; |
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| 332 | pB += 0.5; |
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| 333 | pB *= 255; |
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| 334 | if (pB < 0) pB = 0; |
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| 335 | if (pB > 255) pB = 255; |
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| 336 | |||
| 337 | pixels[i * 4] = (byte)pB; |
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| 338 | pixels[i * 4 + 1] = (byte)pG; |
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| 339 | pixels[i * 4 + 2] = (byte)pR; |
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| 340 | } |
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| 341 | } |
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| 342 | |||
| 343 | return pixels; |
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| 344 | } |
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| 345 | cdfb57ff | taeseongkim | } |
| 346 | } |
