align crop

Allows you to upload and crop images online based on asp.net, 1. Description After asp.net uploadify implements the multiattachment upload function, it suddenly uses the Avatar upload and online cropping. I have found many examples on the Internet that do not meet the requirements. I wrote a good article, Asp. net platform online image cropping function implementation code (source code packaging), you can look 2. Composition First, describe the techno

Cropping example: The final cropped image: In the dotted box, the cropped image is saved as a 100-width image. The Code is as follows: Copy codeThe Code is as follows:$ Src_path = '1.jpg ';// Create an instance of the source Image$ Src = imagecreatefromstring (file_get_contents ($ src_path )); // Crop the coordinates of the points in the upper left corner of the area.$ X = 100;$ Y = 12;// Width and height of the Cropping Area$ Width = 200;$ Height

. decodeStream (getContentResolver (). OpenInputStream (imageFileUri), null, factory );Int hRatio = (int) Math. ceil (factory. outHeight/(float) dh); // The image is several times the height.Int wRatio = (int) Math. ceil (factory. outWidth/(float) dw); // The image is several times the width.System. out. println ("hRatio:" + hRatio + "wRatio:" + wRatio );// Scale down to 1/ratio and 1/ratio ^ 2 pixelsIf (hRatio> 1 | wRatio> 1 ){If (hRatio> wRatio ){Factory. inSampleSize = hRatio;}ElseFactory. in

Storagefolder savedpics = ApplicationData.Current.LocalFolder;BitmapImage bi = new BitmapImage ();RenderTargetBitmap RenderTargetBitmap = new RenderTargetBitmap ();Await Rendertargetbitmap.renderasync (gridimage);IBuffer buffer = await rendertargetbitmap.getpixelsasync ();StorageFile NewFile = await Savedpics.createfileasync ("snap.jpg", creationcollisionoption.replaceexisting);using (var Writestream = await newfile. OpenAsync (Fileaccessmode.readwrite))//{Bitmapencoder Jpgencode = await Bitmape

The image size is too large and its specifications are not uniform. The display control needs to be completed by JavaScript. When used on mobile devices, the display effect is poor and the traffic is huge. You need to process the image of the existing image library once, generate thumbnails that meet the requirements of mobile devices, and transfer the work done by the original client JS to the server using the php gd library for centralized processing. Image Source and required size: $src_img

When registering a member, it is important for the member to enter the Avatar. It is difficult to expect ordinary people to have the ability to operate photoshop, making it unrealistic for them to provide personal photos of a proper size. Fortunately, now we can allow the server to support image processing. We only need to provide the user-designed image interface on the client.The following program allows you to crop and scale some images. Technicall

Python crawler practice (1) -------- China crop germplasm Information Network, python -------- The related code has been modified and debugged. ---- Target URL: http://www.cgris.net/query/croplist.php Implementation: crawls related information and stores the crawled data into the mysql database. Result data is stored in Baidu cloud: Link: http://pan.baidu.com/s/1jHKv 6Cm password: mlp2 (the data is SQL and should be run in mysql) Data result se

First, use.1. Start chart selection (camera, photo album)This code starts the camera photo Selectpicutil.getbycamera (this);//This code jumps to the photo album Selectpicutil.getbyalbum (this);2, processing pictures, processing in the Onactivityresultprotected void Onactivityresult (int requestcode, int resultcode, Intent data) {//Output picture 800*400 size, clip ratio when selecting picture is 2:1 BM = SelEctpicutil.onactivityresult (This, Requestcode, ResultCode, data, 800, 400, 2, 1); if (Bm

contextCgcontextref context =Uigraphicsgetcurrentcontext ();The context in which the picture is rendered [Self. ImageView. Layer Renderincontext:context];Get a picture in contextUIImage *image =Uigraphicsgetimagefromcurrentimagecontext ();Close the bitmap contextUigraphicsendimagecontext ();//remove the Cut Area view control and empty [selfself.clipview = NIL; //display the picture to ImageView self.imageview.image = image; //prompts the user via Alertview, whether to save the picture to the al

. Chain_approx_simple)#looking for outlinesCv2.imshow ('Imageshow', image)#* * Display return value image, in fact, with the input parameters of the Thresh original no difference * *#Print (np.size (contours)) ##Print (contours[0]) # Prints the coordinates of all points of the first outline, changing the 0 here to 0--(total contour number-1) to print the coordinates of all points of the corresponding contour#print (hierarchy) #** prints out the relationship between the corresponding outlines * *

); $file _name = basename ($path, $file _ext); $save _path = "{$orig _dir}/{$site}/{$width}x{$height}-{$mode}/{$path}"; $save _dir = dirname ($save _path); if (! file_exists ($save _dir)) Wpx_mkdir ($save _dir); $target _width = $width; $target _height = $height; $new _width = $target _width; $new _height = $target _height; $image = new Imagick ($orig _file); List ($orig _width, $orig _height, $type, $attr) = getimagesize ($orig _file);

Remember that the As script can be easily used for flex applications. CodeWhile image crop in CSS is also very popular nowadays, For example, Google's Gmail images (the figure below shows a PNG image used by CSS In Gmail) use this technology. Many theme in Yahoo's Yui also uses this method, this method has many advantages, such as the ease of chip management, reduced Web requests, and more conducive to image compression, The implementation prin

In the actual project application, in order to reduce the volume of the system, so the crazy cut, but for many of the cutting module, in fact, very little understanding, and in the process of cropping, if only the way to apply RPM unloading, you will find that there are a lot of dependencies, resulting in clipping failure. In the process of Baidu, will find a lot of modules do not have a description, the matter for the moment to do it. After a round of about one weeks of madness, the volume of t

> 8 );VBuffer [10] = (byte) (vCount> 16 );Vbuffer [11] = (byte) (vcount> 24 );Intptr htemp = extcreateregion (intptr. Zero,Sizeof (uint) * 8 + sizeof (INT) * 4 * vcount,Ref vbuffer [0]);If (vResult = IntPtr. Zero)VResult = hTemp;Else{CombineRgn (vResult, vResult, hTemp, RGN_OR );DeleteObject (hTemp );}VCount = 0;VPointer = sizeof (uint) * 4;VWriteAlways = false;}VWriteRect = false;VLastMaskBit = false;}Vaddress + = 4;}Vaddress + = voffset;} Vbitmap. unlockbits (vbitmapdata );Return region. fromh

BatchClipRasterByElement batch crop images Previous/next article 21:22:56/person type: PythonView (24)/comment (0)/score (0/0) # Chinese Encoding Problems#-*-Coding: gbk -*-# Author: RYQ# CreateTime: July 15, April 18, 2013# Tool Description: Use each surface element in the surface layer to split the Raster image and save it to GDB. Print "importing required modules. Please wait ........"Import arcpyImport OSFrom arcpy import env # You need to modify

1. Crop images for iOS -(Uiimage *) croppedimage :( uiimage *) Image {If (image){Float min = min (image. Size. Width, image. Size. Height );Cgrect rectmax = cgrectmake (image. Size. Width-min)/2, (image. Size. Height-min)/2, Min, min );Cgimageref subimageref = cgimagecreatewithimageinrect (image. cgimage, rectmax );Uigraphicsbeginimagecontext (rectmax. size );Cgcontextref context = uigraphicsgetcurrentcontext ();Cgcontextdrawimage (context, cgrectmake

A small example of IOS development -- use UIImagePickerController to create a simple camera application and use uiimagepicker to crop This blog post is a summary of the learning process for reading IOS Programming Tutorial from abroad. It is difficult because it is an entry. It's mainly about getting started with the UIImagePickerController controller. Why is this controller? It is used to call the camera function of a device. In the future, you may n

IOSQuartz2D-04-manually crop images and save them to albumsEffect Procedure Draw a rectangle, and an alertView is displayed, prompting whether to save the image and clicking "yes". Save the image to the album and view the saved image in the album. Implementation Add an imageView to the view of the controller, set the image to add a pan gesture to the view of the Controller to track the pan gesture, and draw a rectangle box ( Cut area of the imageAt t

controller[self performselector: @selector (Removeandreleaseviewcontrollerwrapper) WIthobject:nil afterdelay:1.0];//unitysendmessage ("Etceteramanager", "Dismissingviewcontroller", "" "); -(void) removeandreleaseviewcontrollerwrapper{//IPad might has a popoverif (ui_user_interface_idiom () = = Uiuserinterfaceidiompad _popoverviewcontroller) {[_popoverviewcontroller dismisspopoveranimated:yes]; Self.popoverviewcontroller = nil;}} @endextern "C" {void Openphoto ()//album {//unitypause (TR

: */* According to the parameters $width and $height, the proportional height and width are converted . : if($width ($width _orig : { : $width = ($height/$height _orig) * $width _orig; : } : Else : { : $height = ($width/$width _orig) * $height _orig; : } 28:* / * Create a canvas with a new size * / : $image _p = Imagecreatetruecolor ($width, $height); 31:* / * Get Image resources * / : $image = imagecreatefrompng ($f