Image quality is fuzzy in a blog post
Using Jamroom
The chosen resolution is a bit low, open up the editor where the image is and edit the source code, (that double greaterthan/lessthan button), and look for this:
Change it to this
To use a biggger image.
Valid image sizes are:
Quote:image size - must be one of: 24,xxsmall,40,xsmall,56,72,small,96,icon96,128,icon,196,medium,256,large,320,larger,384,xlarge,512,xxlarge,800,xxxlarge,1280
--edit--
That image size is set when you upload the image in the dropdown box, you could always re-upload it again but select a larger image size when you upload. That would do the same thing.
here is a screenshot of where it was set when the image was uploaded:
updated by @michael: 05/05/15 05:53:38PM