Using splitRaster in ArcGIS Pro outputs dark JPEGs, bright PNGs

I am using the splitRaster function to create 10m x 10m JPEG files from a GeoTIFF, inputting a fishnet grid as a polygon to clip it by. I have figured out the problem of the depth changing between clipping and have set NoData = 254. When I run the tool, however, I am finding that I have very dark .jpg images and very bright .png images as outputs:

^ JPEG example

^ PNG example

I need these images to be in 8-bit JPG or PNG. Ideally, it would look like what is displayed in ArcGIS Pro. I know those images are stretched, but I am unsure how to translate that into these jpgs/pngs.

^ What I would like the images to look like.