This article describes how to use the imagick module in php to scale, crop, and compress images. For more information about how to use the Imagick module in PHP to scale, crop, and compress images, including GIF images
Scale and crop
The code is
This article describes how to use the imagick module in php to scale, crop, and compress images. For more information about how to use the Imagick module in PHP to scale, crop, and compress images, including GIF images
Scale and crop
The code is
Recently have time to understand the next HTML5 API, found that Sina Weibo avatar settings are implemented using canvas, and the previous period of time to understand the next HTML5 file API to use the files API FileReader to realize the upload more
My demand function: Upload the avatar on the handset side, with the cropping box.
cropper.js through the canvas to achieve picture clipping, and finally in the canvas to get the cropped area of the picture Base64 string.
Cropper Documents:
In the Android app, very often we need to implement upload images, or directly call the camera on the phone to take photos processing and then directly display and upload the function, the following will be called the camera to take pictures of the
In an application to replace the user's avatar, generally have to take pictures and choose photos from the gallery two ways, now there are many open-source online, but many are too complex. And Android-crop This cubby small, the code is not complex,
PHP uses the Imagick module to scale, crop, compress pictures including GIF images
Zoom crop
Copy CodeThe code is as follows:/*** Picture Clipping* Cropping rules:* 1. Height is empty or zero by width scaling height adaptive* 2. Width is empty or
Head.addeventlistener (' Tap ', function () {var image_unspecified = "image/*";//Photo album displays the file type var photozoom = 2;//Get the picture back Back key var Photolat = 1; After trimming, return key var main =
This article describes how to crop a region image using the clip () method in HTML5CanvasAPI. Pay special attention to the use of the save () and restore () methods, for more information about how to use Canvas to draw images, we often want to
In development, invoking system libraries and cropping photos is a common requirement. Compared to the realization of this function, the direct call system has many advantages, such as not to consider screen adaptation, do not worry about
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