How to convert DynamicImage into rgba array of bytes?

[ghmendonca]

How to convert DynamicImage into rgba array of bytes?
I'm trying to convert a DynamicImage into a Vec where each element in the array is the byte for the rgba pixel of the image.

Basically what I need to do is to generate a thumb hash of the image, and for that I need the rgba array of pixels. As far as I understand, DynamicImage doesn't have any pixel related function, so I would have to create an ImageBuffer from the bytes of the DynamicImage and do some operations, but I can't find exactly which functions of the ImageBuffer I need to use to achieve this.

[fintelia]

The into_rgba8 returns an ImageBuffer, and then you can call as_raw or as_bytes on it.