Can't load png dataset with 4 channel (RGBA)
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Hi! Can you please share the directory structure of your image folder and the `load_dataset` call? We decode images with Pillow, and Pillow supports RGBA PNGs, so this shouldn't be a problem.

 > Hi! Can you please share the directory structure of your image folder and the `load_dataset` call? We decode images with Pillow, and Pillow supports RGBA PNGs, so this shouldn't be a problem.
> 
> 

I have only 1 folder that I use in the load_dataset function with the name "IMGDATA" and all my 9000 images are located in this folder.
`
from datasets import load_dataset

dataset = load_dataset("IMGDATA")
`
At the same time, using another data set with images consisting of 3 RGB channels, everything works Okay, I figured out what was wrong. When uploading my dataset via Google Drive, the images broke and Pillow couldn't open them. As a result, I solved the problem by downloading the ZIP archive
I try to create dataset which contains about 9000 png images 64x64 in size, and they are all 4-channel (RGBA). When trying to use load_dataset() then a dataset is created from only 2 images. What exactly interferes I can not understand.![Screenshot_20230117_212213.jpg](https://user-images.githubusercontent.com/41611046/212980147-9aa68e30-76e9-4b61-a937-c2fdabd56564.jpg)
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