Addition
Makes an addition between two images.
🖼️ Image options and parameters of add method
add method, opposed to subtraction, takes another Image and makes an addition between each respective pixel value.
It works like this:
let mask = new Image(3, 3, {
data: new Uint8Array([1, 122, 122, 122, 122, 1, 1, 1, 1]),
});
let mask2 = new Image(3, 3, {
data: new Uint8Array([1, 133, 133, 133, 0, 0, 50, 0, 1]),
});
mask = mask.add(mask2);
// expect mask to equal [2,255,255,255,255,122,1,51,2]
caution
Images must have the same size, channel number and bit depth for compatibility reasons.
Kinds of images compatible with algorithm
| Image property | What it means | Possible values |
|---|---|---|
bitDepth | number of bits per channel | [8,16] |
components | number of components | any |
alpha | is alpha channel allowed | false |