The purpose of this exercise is yo look at the difference between the image quality of Raw and Jpeg files. The first 2 pictures presented here are screen shots of what is a HDR image as can be seen by the histograms on the right hand side of the screen shot. There are two images one DNG and one Jpeg.
Looking at the histogram I can see that this is a high dynamic range image. It’s a little underexposed but not too bad and I can see that the shadows are a tiny bit clipped on the left.
This second image is a jpeg image and it surprise me to see that although the exposure setting is the same i.e ISO 500, f 16.0 and 1/250 second, the clipping of the shadows is much worse. Both of these images are unprocessed. The processed versions are below.
I was a little surprised to see that the shadows on the Jpeg version are very noisy after adjustment. Also the difference between the 2 files to start with meant that the same latitude is not there to adjust the jpeg version as with the Raw version.
The next 2 images are taken under artificial light. I guess it is more correct to say it is mixed lighting, artificial and natural light.
This first image is a DNG image.
The second image here is a Jpeg image. The histogram shows these images to be of medium contrast. Again its surprising to see that the colour in the two images are different. The Jpeg image is cooler I think, especially around the shop dummy on the left, its more green.
The next two images are taken in natural light and are medium contrast. I can see little or no difference between the two. Even the noise levels are similar, there being a little noise in the shadow.
This is the DNG version.
This is the Jpeg version and there is little or any difference between the two.