{"id":375,"date":"2024-07-30T08:12:07","date_gmt":"2024-07-30T00:12:07","guid":{"rendered":"https:\/\/thereisno.top:4430\/?p=375"},"modified":"2024-10-22T16:00:10","modified_gmt":"2024-10-22T08:00:10","slug":"%e4%bd%bf%e7%94%a8%e8%bd%ac%e6%8d%a2%e6%9d%a5%e8%b0%83%e6%95%b4%e9%a2%9c%e8%89%b2","status":"publish","type":"post","link":"https:\/\/thereisno.top\/?p=375","title":{"rendered":"\u4f7f\u7528\u77e9\u9635\u8f6c\u6362\u6765\u8c03\u6574\u989c\u8272"},"content":{"rendered":"\n

\u7f29\u653e\u53d8\u6362\u662f\u6307\u7528\u4e00\u4e2a\u6570\u5b57\u4e0e\u8fd9\u56db\u4e2a\u989c\u8272\u5206\u91cf\u4e2d\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u76f8\u4e58\u3002 \u4e0b\u8868\u7ed9\u51fa\u8868\u793a\u7f29\u653e\u7684\u989c\u8272\u77e9\u9635\u9879\u3002<\/p>\n\n\n\n\n\n\n\n

\u8981\u7f29\u653e\u7684\u5206\u91cf<\/strong><\/td>\u77e9\u9635\u9879<\/strong><\/td><\/tr>
Red<\/td>[0][0]<\/td><\/tr>
\u7eff\u8272<\/td>[1][1]<\/td><\/tr>
\u84dd\u8272<\/td>[2][2]<\/td><\/tr>
Alpha<\/td>[3][3]<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u7f29\u653e\u4e00\u79cd\u989c\u8272<\/strong><\/p>\n\n\n\n

\u4e0b\u9762\u7684\u793a\u4f8b\u4ece\u6587\u4ef6 ColorBars2.bmp \u6784\u9020\u4e00\u4e2a Image<\/a> \u5bf9\u8c61\u3002 \u7136\u540e\uff0c\u4ee3\u7801\u5c06\u56fe\u50cf\u4e2d\u6bcf\u4e2a\u50cf\u7d20\u7684\u84dd\u8272\u5206\u91cf\u4e58\u4ee5 2\u3002 \u539f\u6765\u7684\u56fe\u50cf\u7ed8\u5236\u5728\u53d8\u6362\u540e\u7684\u56fe\u50cf\u65c1\u8fb9\u3002<\/p>\n\n\n\n

C#<\/p>\n\n\n\n

VB<\/a><\/p>\n\n\n\n

Image image = new Bitmap(“ColorBars2.bmp”);
ImageAttributes imageAttributes = new ImageAttributes();
int width = image.Width;
int height = image.Height;<\/p>\n\n\n\n

float[][] colorMatrixElements = {
   new float[] {1,  0,  0,  0, 0},
   new float[] {0,  1,  0,  0, 0},
   new float[] {0,  0,  2,  0, 0},
   new float[] {0,  0,  0,  1, 0},
   new float[] {0, 0, 0, 0, 1}};<\/p>\n\n\n\n

ColorMatrix colorMatrix = new ColorMatrix(colorMatrixElements);<\/p>\n\n\n\n

imageAttributes.SetColorMatrix(
   colorMatrix,
   ColorMatrixFlag.Default,
   ColorAdjustType.Bitmap);<\/p>\n\n\n\n

e.Graphics.DrawImage(image, 10, 10, width, height);<\/p>\n\n\n\n

e.Graphics.DrawImage(
   image,
   new Rectangle(150, 10, width, height),  \/\/ destination rectangle
   0, 0,        \/\/ upper-left corner of source rectangle
   width,       \/\/ width of source rectangle
   height,      \/\/ height of source rectangle
   GraphicsUnit.Pixel,
   imageAttributes);<\/p>\n\n\n\n

\u4e0b\u9762\u7684\u63d2\u56fe\u5728\u5de6\u4fa7\u663e\u793a\u539f\u6765\u7684\u56fe\u50cf\uff0c\u5728\u53f3\u4fa7\u663e\u793a\u7f29\u653e\u540e\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u4e0b\u8868\u5217\u51fa\u5728\u8fdb\u884c\u84dd\u8272\u7f29\u653e\u524d\u540e\uff0c\u56db\u680f\u7684\u989c\u8272\u77e2\u91cf\u3002 \u8bf7\u6ce8\u610f\uff0c\u7b2c\u56db\u4e2a\u989c\u8272\u680f\u4e2d\u7684\u84dd\u8272\u5206\u91cf\u4ece 0.8 \u53d8\u5230 0.6\u3002 \u8fd9\u662f\u56e0\u4e3a GDI+ \u53ea\u4fdd\u7559\u7ed3\u679c\u7684\u5c0f\u6570\u90e8\u5206\u3002 \u4f8b\u5982\uff0c(2)(0.8) = 1.6\uff0c1.6 \u7684\u5c0f\u6570\u90e8\u5206\u662f 0.6\u3002 \u53ea\u4fdd\u7559\u5c0f\u6570\u90e8\u5206\u53ef\u786e\u4fdd\u7ed3\u679c\u603b\u662f\u5728 [0, 1] \u4e4b\u95f4\u3002<\/p>\n\n\n\n

Original<\/strong><\/td>\u7f29\u653e\u540e<\/strong><\/td><\/tr>
(0.4, 0.4, 0.4, 1)<\/td>(0.4, 0.4, 0.8, 1)<\/td><\/tr>
(0.4, 0.2, 0.2, 1)<\/td>(0.4, 0.2, 0.4, 1)<\/td><\/tr>
(0.2, 0.4, 0.2, 1)<\/td>(0.2, 0.4, 0.4, 1)<\/td><\/tr>
(0.4, 0.4, 0.8, 1)<\/td>(0.4, 0.4, 0.6, 1)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u7f29\u653e\u591a\u79cd\u989c\u8272<\/strong><\/p>\n\n\n\n

\u4e0b\u9762\u7684\u793a\u4f8b\u4ece\u6587\u4ef6 ColorBars2.bmp \u6784\u9020\u4e00\u4e2a Image<\/a> \u5bf9\u8c61\u3002 \u7136\u540e\uff0c\u8be5\u4ee3\u7801\u7f29\u653e\u56fe\u50cf\u4e2d\u6bcf\u4e2a\u50cf\u7d20\u7684\u7ea2\u8272\u3001\u7eff\u8272\u548c\u84dd\u8272\u5206\u91cf\u3002 \u7ea2\u8272\u5206\u91cf\u7f29\u5c0f\u4e86 25%\uff0c\u7eff\u8272\u5206\u91cf\u7f29\u5c0f\u4e86 35%\uff0c\u84dd\u8272\u5206\u91cf\u7f29\u5c0f\u4e86 50%\u3002<\/p>\n\n\n\n

VB<\/a><\/p>\n\n\n\n

Image image = new Bitmap(“ColorBars.bmp”);
ImageAttributes imageAttributes = new ImageAttributes();
int width = image.Width;
int height = image.Height;<\/p>\n\n\n\n

float[][] colorMatrixElements = {
   new float[] {.75F,  0,  0,  0, 0},
   new float[] {0,  .65F,  0,  0, 0},
   new float[] {0,  0,  .5F,  0, 0},
   new float[] {0,  0,  0,  1F, 0},
   new float[] {0, 0, 0, 0, 1F}};<\/p>\n\n\n\n

ColorMatrix colorMatrix = new ColorMatrix(colorMatrixElements);<\/p>\n\n\n\n

imageAttributes.SetColorMatrix(
   colorMatrix,
   ColorMatrixFlag.Default,
   ColorAdjustType.Bitmap);<\/p>\n\n\n\n

e.Graphics.DrawImage(image, 10, 10, width, height);<\/p>\n\n\n\n

e.Graphics.DrawImage(
   image,
   new Rectangle(150, 10, width, height),  \/\/ destination rectangle
   0, 0,        \/\/ upper-left corner of source rectangle
   width,       \/\/ width of source rectangle
   height,      \/\/ height of source rectangle
   GraphicsUnit.Pixel,
   imageAttributes);<\/p>\n\n\n\n

\u4e0b\u9762\u7684\u63d2\u56fe\u5728\u5de6\u4fa7\u663e\u793a\u539f\u6765\u7684\u56fe\u50cf\uff0c\u5728\u53f3\u4fa7\u663e\u793a\u7f29\u653e\u540e\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u4e0b\u8868\u5217\u51fa\u5728\u7f29\u653e\u7ea2\u8272\u3001\u7eff\u8272\u548c\u84dd\u8272\u524d\u540e\uff0c\u56db\u680f\u7684\u989c\u8272\u77e2\u91cf\u3002<\/p>\n\n\n\n

Original<\/strong><\/td>\u7f29\u653e\u540e<\/strong><\/td><\/tr>
(0.6, 0.6, 0.6, 1)<\/td>(0.45, 0.39, 0.3, 1)<\/td><\/tr>
(0, 1, 1, 1)<\/td>(0, 0.65, 0.5, 1)<\/td><\/tr>
(1, 1, 0, 1)<\/td>(0.75, 0.65, 0, 1)<\/td><\/tr>
(1, 0, 1, 1)<\/td>(0.75, 0, 0.5, 1)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

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