markus / KCOM / Common / ImageSourceHelper.cs @ f258d884
이력 | 보기 | 이력해설 | 다운로드 (11.7 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 | 3212270d | taeseongkim | return GetDownloadImage(new Uri(uri),null); |
| 68 | } |
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| 69 | public static BitmapImage GetDownloadImage(string uri,System.Windows.Size DecodeSize) |
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| 70 | {
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| 71 | return GetDownloadImage(new Uri(uri), DecodeSize); |
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| 72 | adce8360 | humkyung | } |
| 73 | |||
| 74 | 3212270d | taeseongkim | public static BitmapImage GetDownloadImage(Uri uri, System.Windows.Size? DecodeSize) |
| 75 | adce8360 | humkyung | {
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| 76 | BitmapImage resultImage = new BitmapImage(); |
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| 77 | |||
| 78 | resultImage.BeginInit(); |
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| 79 | 3212270d | taeseongkim | |
| 80 | if(DecodeSize != null) |
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| 81 | {
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| 82 | resultImage.DecodePixelWidth = (int)DecodeSize.Value.Width; |
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| 83 | resultImage.DecodePixelHeight = (int)DecodeSize.Value.Height; |
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| 84 | } |
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| 85 | |||
| 86 | adce8360 | humkyung | resultImage.CacheOption = BitmapCacheOption.OnLoad; |
| 87 | resultImage.UriCachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.Default); |
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| 88 | resultImage.UriSource = uri; |
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| 89 | resultImage.EndInit(); |
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| 90 | |||
| 91 | resultImage.DownloadProgress += (ex, arg) => |
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| 92 | {
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| 93 | System.Diagnostics.Debug.WriteLine($"download Image : {arg.Progress}%");
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| 94 | }; |
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| 95 | |||
| 96 | while (resultImage.IsDownloading) |
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| 97 | {
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| 98 | System.Windows.Forms.Application.DoEvents(); //Method from thread linked above |
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| 99 | System.Diagnostics.Debug.WriteLine("doEvent");
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| 100 | } |
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| 101 | |||
| 102 | resultImage.Freeze(); |
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| 103 | return resultImage; |
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| 104 | } |
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| 105 | |||
| 106 | 566f0526 | taeseongkim | public static byte[] CopyPixels(BitmapSource image) |
| 107 | {
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| 108 | byte[] result = new byte[image.PixelWidth * image.PixelHeight * 4]; |
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| 109 | image.CopyPixels(result, image.PixelWidth * 4, 0); |
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| 110 | |||
| 111 | return result; |
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| 112 | } |
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| 113 | |||
| 114 | public static byte[] SetBrightness(int brightness, byte[] pixels) |
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| 115 | {
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| 116 | for (int i = 0; i < pixels.Length / 4; ++i) |
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| 117 | {
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| 118 | byte b = pixels[i * 4]; |
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| 119 | byte g = pixels[i * 4 + 1]; |
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| 120 | byte r = pixels[i * 4 + 2]; |
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| 121 | byte a = pixels[i * 4 + 3]; |
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| 122 | |||
| 123 | if (r != 255 || g != 255 || b != 255 || a == 255) |
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| 124 | {
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| 125 | b = (byte)(b + brightness); |
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| 126 | g = (byte)(g + brightness); |
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| 127 | r = (byte)(r + brightness); |
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| 128 | ///a = (byte)(a + brightness); |
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| 129 | |||
| 130 | if (r < 0) r = 1; |
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| 131 | if (r > 255) r = 255; |
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| 132 | |||
| 133 | if (g < 0) g = 1; |
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| 134 | if (g > 255) g = 255; |
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| 135 | |||
| 136 | if (b < 0) b = 1; |
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| 137 | if (b > 255) b = 255; |
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| 138 | |||
| 139 | pixels[i * 4] = b; |
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| 140 | pixels[i * 4 + 1] = g; |
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| 141 | pixels[i * 4 + 2] = r; |
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| 142 | } |
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| 143 | } |
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| 144 | |||
| 145 | return pixels; |
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| 146 | } |
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| 147 | |||
| 148 | public static byte[] SetBrightnessAndContrast(int brightness,double contrast, byte[] pixels) |
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| 149 | {
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| 150 | 997071b8 | taeseongkim | System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch(); |
| 151 | stopwatch.Start(); |
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| 152 | |||
| 153 | 566f0526 | taeseongkim | if (contrast < -100) contrast = -100; |
| 154 | if (contrast > 100) contrast = 100; |
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| 155 | contrast = (100.0 + contrast) / 100.0; |
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| 156 | contrast *= contrast; |
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| 157 | |||
| 158 | for (int i = 0; i < pixels.Length / 4; ++i) |
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| 159 | {
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| 160 | byte b = pixels[i * 4]; |
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| 161 | byte g = pixels[i * 4 + 1]; |
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| 162 | byte r = pixels[i * 4 + 2]; |
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| 163 | byte a = pixels[i * 4 + 3]; |
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| 164 | |||
| 165 | 997071b8 | taeseongkim | //System.Diagnostics.Debug.WriteLineIf(i< 4, $"B :{b} G : {g} r : {r}");
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| 166 | |||
| 167 | if (r != 255 || g != 255 || b != 255) |
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| 168 | 566f0526 | taeseongkim | {
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| 169 | b = (byte)(b + brightness); |
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| 170 | g = (byte)(g + brightness); |
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| 171 | r = (byte)(r + brightness); |
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| 172 | ///a = (byte)(a + brightness); |
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| 173 | |||
| 174 | if (r < 0) r = 1; |
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| 175 | if (r > 255) r = 255; |
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| 176 | |||
| 177 | if (g < 0) g = 1; |
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| 178 | if (g > 255) g = 255; |
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| 179 | |||
| 180 | if (b < 0) b = 1; |
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| 181 | if (b > 255) b = 255; |
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| 182 | |||
| 183 | double pR = r / 255.0; |
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| 184 | pR -= 0.5; |
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| 185 | pR *= contrast; |
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| 186 | pR += 0.5; |
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| 187 | pR *= 255; |
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| 188 | if (pR < 0) pR = 0; |
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| 189 | if (pR > 255) pR = 255; |
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| 190 | |||
| 191 | double pG = g / 255.0; |
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| 192 | pG -= 0.5; |
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| 193 | pG *= contrast; |
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| 194 | pG += 0.5; |
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| 195 | pG *= 255; |
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| 196 | if (pG < 0) pG = 0; |
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| 197 | if (pG > 255) pG = 255; |
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| 198 | |||
| 199 | double pB = b / 255.0; |
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| 200 | pB -= 0.5; |
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| 201 | pB *= contrast; |
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| 202 | pB += 0.5; |
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| 203 | pB *= 255; |
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| 204 | if (pB < 0) pB = 0; |
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| 205 | if (pB > 255) pB = 255; |
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| 206 | |||
| 207 | pixels[i * 4] = (byte)pB; |
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| 208 | pixels[i * 4 + 1] = (byte)pG; |
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| 209 | pixels[i * 4 + 2] = (byte)pR; |
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| 210 | fc9da8df | taeseongkim | } |
| 211 | 566f0526 | taeseongkim | } |
| 212 | |||
| 213 | 997071b8 | taeseongkim | System.Diagnostics.Debug.WriteLine($"일반 : {stopwatch.Elapsed.ToString()}");
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| 214 | |||
| 215 | return pixels; |
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| 216 | } |
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| 217 | |||
| 218 | public static byte[] SetBrightnessAndContrastLinp(int brightness, double contrast, byte[] pixels) |
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| 219 | {
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| 220 | System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch(); |
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| 221 | stopwatch.Start(); |
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| 222 | |||
| 223 | if (contrast < -100) contrast = -100; |
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| 224 | |||
| 225 | if (contrast > 100) contrast = 100; |
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| 226 | |||
| 227 | contrast = (100.0 + contrast) / 100.0; |
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| 228 | |||
| 229 | contrast *= contrast; |
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| 230 | |||
| 231 | Parallel.ForEach(SteppedIntegerList(pixels,0, pixels.Length, 4,4),new ParallelOptions {MaxDegreeOfParallelism = 5 }, item=>
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| 232 | {
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| 233 | var pixel = item.ToList(); |
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| 234 | |||
| 235 | byte b = pixel[0].Value; |
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| 236 | byte g = pixel[1].Value; |
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| 237 | byte r = pixel[2].Value; |
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| 238 | byte a = pixel[3].Value; |
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| 239 | |||
| 240 | //System.Diagnostics.Debug.WriteLineIf(pixel[0].Key < 4, $"B :{b} G : {g} r : {r}");
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| 241 | |||
| 242 | if (r != 255 || g != 255 || b != 255) |
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| 243 | {
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| 244 | b = (byte)(b + brightness); |
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| 245 | g = (byte)(g + brightness); |
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| 246 | r = (byte)(r + brightness); |
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| 247 | ///a = (byte)(a + brightness); |
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| 248 | |||
| 249 | if (r < 0) r = 1; |
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| 250 | if (r > 255) r = 255; |
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| 251 | |||
| 252 | if (g < 0) g = 1; |
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| 253 | if (g > 255) g = 255; |
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| 254 | |||
| 255 | if (b < 0) b = 1; |
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| 256 | if (b > 255) b = 255; |
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| 257 | |||
| 258 | double pR = r / 255.0; |
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| 259 | pR -= 0.5; |
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| 260 | pR *= contrast; |
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| 261 | pR += 0.5; |
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| 262 | pR *= 255; |
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| 263 | if (pR < 0) pR = 0; |
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| 264 | if (pR > 255) pR = 255; |
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| 265 | |||
| 266 | double pG = g / 255.0; |
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| 267 | pG -= 0.5; |
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| 268 | pG *= contrast; |
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| 269 | pG += 0.5; |
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| 270 | pG *= 255; |
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| 271 | if (pG < 0) pG = 0; |
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| 272 | if (pG > 255) pG = 255; |
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| 273 | |||
| 274 | double pB = b / 255.0; |
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| 275 | pB -= 0.5; |
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| 276 | pB *= contrast; |
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| 277 | pB += 0.5; |
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| 278 | pB *= 255; |
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| 279 | if (pB < 0) pB = 0; |
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| 280 | if (pB > 255) pB = 255; |
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| 281 | |||
| 282 | pixels[pixel[0].Key] = (byte)pB; |
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| 283 | pixels[pixel[1].Key] = (byte)pG; |
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| 284 | pixels[pixel[2].Key] = (byte)pR; |
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| 285 | } |
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| 286 | }); |
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| 287 | |||
| 288 | System.Diagnostics.Debug.WriteLine($"Linq : {stopwatch.Elapsed.ToString()}");
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| 289 | |||
| 290 | 566f0526 | taeseongkim | return pixels; |
| 291 | } |
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| 292 | |||
| 293 | 997071b8 | taeseongkim | public static IEnumerable<Dictionary<int,T>> SteppedIntegerList<T>(T[] array, int startIndex,int endEndex, int stepSize,int TakeSize) |
| 294 | {
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| 295 | for (int i = startIndex; i < endEndex; i += stepSize) |
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| 296 | {
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| 297 | Dictionary<int, T> result = new Dictionary<int, T>(); |
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| 298 | |||
| 299 | for (int j = 0; j < TakeSize; j++) |
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| 300 | {
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| 301 | result.Add(j, array[i + j]); |
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| 302 | } |
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| 303 | |||
| 304 | yield return result; |
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| 305 | } |
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| 306 | } |
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| 307 | |||
| 308 | 566f0526 | taeseongkim | public static byte[] SetContrast(double contrast, byte[] pixels) |
| 309 | {
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| 310 | if (contrast < -100) contrast = -100; |
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| 311 | if (contrast > 100) contrast = 100; |
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| 312 | contrast = (100.0 + contrast) / 100.0; |
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| 313 | contrast *= contrast; |
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| 314 | |||
| 315 | for (int i = 0; i < pixels.Length / 4; ++i) |
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| 316 | {
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| 317 | byte b = pixels[i * 4]; |
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| 318 | byte g = pixels[i * 4 + 1]; |
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| 319 | byte r = pixels[i * 4 + 2]; |
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| 320 | byte a = pixels[i * 4 + 3]; |
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| 321 | |||
| 322 | if (r != 255 || g != 255 || b != 255 || a == 255) |
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| 323 | {
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| 324 | double pR = r / 255.0; |
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| 325 | pR -= 0.5; |
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| 326 | pR *= contrast; |
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| 327 | pR += 0.5; |
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| 328 | pR *= 255; |
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| 329 | if (pR < 0) pR = 0; |
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| 330 | if (pR > 255) pR = 255; |
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| 331 | |||
| 332 | double pG = g / 255.0; |
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| 333 | pG -= 0.5; |
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| 334 | pG *= contrast; |
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| 335 | pG += 0.5; |
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| 336 | pG *= 255; |
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| 337 | if (pG < 0) pG = 0; |
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| 338 | if (pG > 255) pG = 255; |
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| 339 | |||
| 340 | double pB = b / 255.0; |
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| 341 | pB -= 0.5; |
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| 342 | pB *= contrast; |
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| 343 | pB += 0.5; |
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| 344 | pB *= 255; |
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| 345 | if (pB < 0) pB = 0; |
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| 346 | if (pB > 255) pB = 255; |
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| 347 | |||
| 348 | pixels[i * 4] = (byte)pB; |
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| 349 | pixels[i * 4 + 1] = (byte)pG; |
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| 350 | pixels[i * 4 + 2] = (byte)pR; |
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| 351 | } |
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| 352 | } |
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| 353 | |||
| 354 | return pixels; |
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| 355 | } |
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| 356 | cdfb57ff | taeseongkim | } |
| 357 | } |
