Resolution, Image Sharpness, and Interpolation.

The article discusses misconceptions on resolution, camera pixel count, interpolation and their effect on astronomical images, confusions between image sharpness and resolution and examination of pixel count as not a guarantee of image sharpness or high resolution. These include image sharpness as an indication of a well-balanced data in the spatial-frequency domain no matter the size of the image while resolution is a measure of how many pixels cover a given detail in an image.