javascript - Convert to Image or use canvas? -

javascript - Convert to Image or use canvas? -

just wondering if improve convert canvas drawing image before adding dom or improve add together canvas itself?

i using canvas create image.

it depends on scenario.

canvas may or may not allocate memory buffer typically shares buffer display buffer. may not case if pixel ratio different 1:1 (ie. retina displays).

also, canvas, if created using html tags, may cleared browser under conditions such window resize. seem lesser problem though used (chrome clear canvas when showing dialogs).

converting image gives performance , memory overhead though: first create compressed image, converting base-64 additional 33% memory overhead, pass in image source triggers converting of base-64 string image file , decompressing bitmap.

javascript html5 canvas