convert image to blob

SOURCE http://blog.csdn.net/cuixiping/article/details/45932793Canvas converted to Dataurl (get dataurl from canvas)var dataurl = canvas.toDataURL(‘image/png‘);var dataurl2 = canvas.toDataURL(‘image/jpeg‘, 0.8);Convert file object to Dataurl, Blob

Original Address:http://www.shihua.im/2015/12/29/20151229_arrayBuffer/http://blog.csdn.net/cuixiping/article/details/45932793Blob to ArrayBuffervar New Blob ([data], {type: ' Text/plain '}); var New function(e) { callback

Why? Users do not need to download images and then upload them through input file; The chrome plug-in can directly right-click the image on the page and upload the image directly; All to increase user experience! Ideas Request an image through

Canvas converted to Dataurl (get dataurl from canvas)var dataurl = canvas.toDataURL(‘image/png‘);Convert file object to Dataurl, Blob object to DataurlThe file object is also a Blob object, with the same processing.function readBlobAsDataURL(blob,

Functions are relatively simple, just look at the OK/*-----------------------------------------------------------------------*///Canvas to Dataurl:canvas object, convert format, Image quality Function Canvastodataurl (canvas, format, quality)

Address: http://fengwen.iteye.com/blog/580323 Problem: a xx Settlement System requires transaction statistics from another system, which stores and exports images for viewing.   The Slice directly exists in the database as blob. I thought it was a

There are two Field Types in MySQL that are confusing, namely TEXT and BLOB. In particular, the bloggers who write their own blog programs do not know whether to change their blog body fields to TEXT or BLOB. The following are some differences: 1.

Canvas Convert to Dataurl (get Dataurl from canvas) var dataurl = Canvas.todataurl (' image/png '); var dataurl2 = Canvas.todataurl (' image/jpeg ', 0.8); Convert file object to Dataurl, Blob object to Dataurl The file object is also a Blob

Javascript and dataurlblob that are mutually converted between DataURL and File, Blob, and canvas objectsConvert canvas to dataURL (get dataURL from canvas) var dataurl = canvas.toDataURL('image/png');Convert File objects to dataURL and Blob objects

What is the difference between TEXT and BLOB Field Types in MySQL? mysqltextblob Field There are two Field Types in MySQL that are confusing, namely TEXT and BLOB. In particular, the bloggers who write their own blog programs do not know whether to