You have the right idea, and it will work in very simple cases such as: var can = document.getElementById('canvas1'); var ctx = can. ... <看更多>

In this video I'll be showing you how to convert an HTML5 Canvas into a downloadable or view-able PNG or ... ... <看更多>

Javsacript: Convert canvas to image, image to canvas - convert-canvas-image.js. ... <看更多>

MethodscanvasToImageDataTakes a canvas and converts it to a vtkImageData. ... image, HTMLImageElement, Yes, The HTML image to convert. ... <看更多>

This works well for me: Select all ( cmd + A ) and cut ( cmd + X ) the image from its canvas (convert to png if asked). Resize the image as desired from the ... ... <看更多>