After I started using Blogger, I noticed that images in my posts were not as sharp and clear as they originally were in my Laptop. They were appearing pixelated so after doing some research I finally got a solution to fix it. I hope many Bloggers are suffering with the same issue so here is a short guide to deal with this problem.
You can see the above two images are same but the upper one looks blurry and pixelated while the one below it is sharp. This is happening because Blogger sets the resolution of images by its own, which you will have to change to make your image look sharp and crystal clear.
Now to change that resolution just upload the image you want to see in your post and move over to HTML Mode. Fine the source code of that image as shown in the below picture.
You will see that in the blurred image S320 is written where as in the sharp one S1600 is written. If you see in the href link the image has S1600 value, which means that an image with orignally S1600 resolution will look good with S1600 resolution in the post. So to make the same image sharp I just changed the value S320 to native S1600 and the image becomes sharp.