1) Cause of a dull picture 
A finish that is more flat than shiny.
Slightly dull finish on coated, lightly calendered paper.
A dull finish. A de-glossed surface. A UV-curable clear coat may also be used to produce a matte or textured finish.
A surface finish created by sandblasting or brushing that has a soft dull look.
Dull paper finish that has no gloss.
A dull or grit surface appearance achieved by rolling on rolls which have been roughened by mechanical, chemical, or electrical means to various degrees of surface texture.
Flat (not glossy) finish on photographic paper or coated printing paper.
a specified roughened or textured surface on flatrolled steel
A coated paper finish that goes through minimal calendaring. Reference, calendaring.
A type of dull non-reflective finish. See SURFACE FINISH.
A surface which displays no gloss when observed at any angle; a highly diffusely reflecting surface.