CODEWITHSUNDEEP
htmlimage-processingcanvaskineticjs
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Reputation: 4318

gamma or curves in KineticJS

Is it possible to modify image gamma or curves using KineticJS? I need those tools to modify canvas. The documentation says nothing about that (see Filters), but maybe I can do it not directly?

Upvotes: 0

Views: 69

Answers (1)

markE
markE

Reputation: 105015

No, KineticJS does not currently have a Gamma filter.

You have a couple of good workarounds:

Option#1

If you are familiar with creating filters, you can fairly easily add a gamma filter to KineticJS.

The existing KineticJS filters just do getImageData+putImageData to directly modify the pixels: https://github.com/ericdrowell/KineticJS/tree/master/src/filters

Option#2

CamanJS is a canvas image library that does a nice job of applying filters: http://camanjs.com/examples/

You can easily use CamanJS with KineticJS as described in my previous answer: KineticJS canvas modified by CamanJS

Upvotes: 1

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