Soft Edge And Black Level; Soft Edge And Black Level Explained - Barco MCM-100S User Manual

12.3 Soft Edge and Black Level

Overview
•

Soft Edge and Black Level explained

• Soft Edge area shape
• General Soft Edge workflow
• The Soft Edge selection dialog
• The Soft Edge edit dialog
• Selecting an anchor point
• Moving an anchor point in small steps
• Moving an anchor point in large steps
• Black level adjustment
• Alpha planes
• Beta planes
12.3.1 Soft Edge and Black Level explained
Soft Edge and Black Level principle
To achieve a seamless multiple channel image on one single large screen, we can make the adjacent images from two or more
display channels overlap in part. In the overlap areas where the image of two channels is joined, we find twice the brightness, so we
need to apply a gradual feather or Soft Edge blending on both channels to reduce the higher brightness to normal. This Soft Edge
blending can be realized with photographic plates put in front of the projection lens (especially used in case of dark sceneries) or
with the Electronic Soft Edge Matching (ESEM) feature of the MCM-100S (especially used in case of bright images).
Image with hard edge
Image 12-37
Example: Soft edge blending
Light output
Image 12-38
Without Soft Edge
R5905187 MCM-100S 05/06/2012
Image without soft edge
adjustment
Channel 1
Channel 1+2
Channel 1
Image with soft edge
Channel 2
Channel 2
12. Expert operation
adjustment
127