C # image cropping code,

C # image cropping code,

/// <Summary> /// scale down the cropped image /// </summary> /// <param name = "int_Width"> scale down the cropped image width </param>/ // <param name = "int_Height"> length of the cropped image </param> // <param name = "input_ImgUrl"> path of the image to be processed </param> // /<param name = "out_ImgUrl"> processed image path </param> public void ImgReduceCutOut (int int_Width, int int_Height, string input_ImgUrl, string out_ImgUrl) {// === upload standard image size === int int_Standard_Width = 160; int int_Standard_Height = 160; int performance_width = 0; // The reduced width int Reduce_Height = 0; // The Reduced Height int CutOut_Width = 0; // The cropped width int CutOut_Height = 0; // The cropped height int level = 100; // The range of the quality of the thumbnail from 1 to ///== get zoom out, crop size = if (int_Standard_Height * int_Width/int_Standard_Width> int_Height) {performance_width = int_Width; performance_height = optional * int_Width/height; CutOut_Width = int_Width; CutOut_Height = int_Height;} else if (optional * int_Width/width <int_Height) {performance_width = optional * int_Height/int_standarheight d_height; performance_height = int_Height; CutOut_Width = int_Width; CutOut_Height = int_Height;} else {performance_width = int_Width; performance_height = int_Height; Height = int_Width; CutOut_Height = int_Height ;} // === create an Image object through a connection === System. drawing. image oldimage = System. drawing. image. fromFile (Server. mapPath (input_ImgUrl); // === zoom out image === System. drawing. image thumbnailImage = oldimage. getThumbnailImage (performance_width, performance_height, new System. drawing. image. getThumbnailImageAbort (ThumbnailCallback), IntPtr. zero); Bitmap bm = new Bitmap (thumbnailImage); // === function for processing JPG quality === ImageCodecInfo [] codecs = ImageCodecInfo. getImageEncoders (); ImageCodecInfo ici = null; foreach (ImageCodecInfo codec in codecs) {if (codec. mimeType = "image/jpeg") ici = codec;} EncoderParameters ep = new EncoderParameters (); ep. param [0] = new EncoderParameter (Encoder. quality, (long) level); // bm. save (Server. mapPath ("2.jpg"), ici, ep); // === crop an image === Rectangle cloneRect = new Rectangle (0, 0, CutOut_Width, CutOut_Height ); pixelFormat format = bm. pixelFormat; Bitmap cloneBitmap = bm. clone (cloneRect, format); // ===save the image === cloneBitmap. save (Server. mapPath (out_ImgUrl), ici, ep );}

 

C language ^ how to use

A1 = 0x01; // 0000 0001
A2 = 0x00; // 0000 0000
A3 = 0x03; // 0000 0011
A4 = 0x02; // 0000 0010

B1 = a1 ^ a2; // 0000 0001
B2 = a1 ^ a3; // 0000 0010
B3 = a1 ^ a4; // 0000 0011

^ XOR operator. The bitwise value is 0 and the difference is 1. See the example above.

//
Examples of simple and practical problems:
====================================
======= A ======= B =========
There are two circuits on the top. The two switches are a and B respectively. The opening status is \ [1], and the closing status is/[0].
If both circuits are enabled or disabled.
If a turns on [1], B turns off [0], and circuit 1 Powers on
=====================
If a disables [0], B enables [1], and circuit 2 powers on.
====================================
In summary, the circuit fails in the and B states simultaneously [0]. When a and B are different, the power is charged [1].

C language ^ how to use

A1 = 0x01; // 0000 0001
A2 = 0x00; // 0000 0000
A3 = 0x03; // 0000 0011
A4 = 0x02; // 0000 0010

B1 = a1 ^ a2; // 0000 0001
B2 = a1 ^ a3; // 0000 0010
B3 = a1 ^ a4; // 0000 0011

^ XOR operator. The bitwise value is 0 and the difference is 1. See the example above.

//
Examples of simple and practical problems:
====================================
======= A ======= B =========
There are two circuits on the top. The two switches are a and B respectively. The opening status is \ [1], and the closing status is/[0].
If both circuits are enabled or disabled.
If a turns on [1], B turns off [0], and circuit 1 Powers on
=====================
If a disables [0], B enables [1], and circuit 2 powers on.
====================================
In summary, the circuit fails in the and B states simultaneously [0]. When a and B are different, the power is charged [1].