I have a set of black and white images, like below. If I remember correctly, there's some way to set the blending or masking property of a UIImage to blend it with the background UIView.
In this case, I want to change the color of this image to red to signify hit points. How can I programmatically change the color of this UIImage?
I know about the use of image filters, in particular hue shift, but they are really resource intensive, plus they don't work on white image, so I'm looking for another solution.
I tried overlaying a UIView with alpha 0.4 and setting it's background color to red, here's the result :
This may work in some cases, but in my case I would like to have more control over the shade of color I'm getting.