pxls
Take in custom pixels container, return normalized 4-channel Uint8Array with pixels. Detects float/int input pixels, handles Infinities, unfolds structures.
var pxls = var ndarray = // <uint8 0,0,0,255, 255,255,255,255> // <uint8 0,0,0,255, 255,255,255,255> // <uint8 0,0,0,255, 255,255,255,255>
let pixels = pxls(arr, shape|step?)
Takes input actual pixels container arr
and returns 4 channels flat Uint8Array pixels
with layout [r,g,b,a, r,g,b,a, r,g,b,a, ...]
.
arr
can be an Array of Arrays, TypedArray, Ndarray, ImageData or DOM container Image, Video, ImageBitmap, Canvas2D, Context2D, WebGLContext.
1-channel input is mapped as grayscale [v,v,v,255, v,v,v,255]
. 3-channel input fills last channel with 255
[r,g,b,255, r,g,b,255]
.
shape
can describe the shape of input array, eg. [100,100,3]
or [10,10]
.
step
optionally can define input number of channels in flat array, that is detected automatically for nested/ndarrays.
See also
- to-uint8 − convert input argument to uint8 array.
- ndarray-to-bitmap-rgba − convert ndarray to rgba bitmap ndarray.
License
(c) 2018 Dmitry Yv. MIT License