Register now or log in to join your professional community.
To determine Sharpness in Radiography concerned with Xray tube focal point
Is one of the distinct parts of a shadow together with umbra and antumbra, created by any light source after impinging on an opaque object
A fringe region if half shadow resulting from the partial obstruction of light by an opaque object.
- the grayish marginal portion of a sunspot.
the Blurred Margin of an Image
the partially shaded outer region of the shadow cast by an opaque object.
the part of a shadow in which there is a small amount of illumination from a light source.
blurring at the edges of a structure on a radiograph.
blurring on the edges or borders
