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javascriptimagehtml5-canvasbmp

html canvas saveAsBmp image saved with grey-ish background?

I have an OpenLayers based heat map that is populated with various heatmap layers, red yellow green gradients etc. I want to take the gradients/dots only with a white background, excluding the map totally. However when I save the bmp images I get a grey-ish background. How can I make sure I have a white background? My save code is like this -called from a button click jquery event-

Canvas2Image.saveAsBMP(heatLayers[currentHeat].canvas);
Solution

  • Saving the files as PNG took care of the issue.