Flickering Still Images

randazzo · Post by **randazzo** » Fri Oct 14, 2005 5:59 am

ok, so you do it also in the photoeditor. I thought you applied a filter in de video-editing program.

Jean-Pierre

Terry Stetler · Post by **Terry Stetler** » Fri Oct 14, 2005 3:37 pm

Images with fine details, say 1 pixel in vertical height, are flicker machines when displayerd on interlaced screens. The fix for AGES has been to apply a slight blur to the image in pre-production to increase the vertical height of these features. When drawing images for video just don't use features with a 1 pixel height.

A parallel technique is avoiding serif fonts. Those little flurishes in serifs are often 1 pixel in height, especially in smaller sizes. Once again they are flicker machines. Using sanserif fonts is the cure. Also useful is a dark border around the font; gray, black or a darker shade of the fonts field color.

Videography 101.

mark@chateaudelacouronne · Tue Oct 18, 2005 12:15 am

Just thought I'd let you know of a positive result! I took your advice. I went back to the original images, reduced them in size as advised, then added a bit of Edge Preserving Smooth in the photo manipulation package to blur them a touch as advised by Heinz-oz. I reloaded them using the Smartlink (not that smart really, is it), and the results are perfect. Not even a hint of flickering even on the most complex shot, and the detail is only very slightly reduced when viewed on a decent TV. So thanks one and all. I've learned something new.

Mark

michaelj1968 · Post by **michaelj1968** » Tue Nov 22, 2005 5:03 pm

Terry Stetler wrote:
A parallel technique is avoiding serif fonts. Those little flurishes in serifs are often 1 pixel in height, especially in smaller sizes. Once again they are flicker machines. Using sanserif fonts is the cure. Also useful is a dark border around the font; gray, black or a darker shade of the fonts field color.

Videography 101.

Forgive me, I'm a bit of a newb myself. Serif fonts? How do I determine which fonts are serif vs sansserif? I'm having a terrible problem with text flickering on my "credit roll"

sjj1805 · Post by **sjj1805** » Tue Nov 22, 2005 5:39 pm

Serif Fonts.
These fonts have either sharp triangles or heavy square rectangles (serifs) on the ends of their strokes. Serifs are used to carry the reader's eye across the page

Sans Serif Fonts
a form of type without serifs.

daniel · Post by **daniel** » Wed Nov 23, 2005 9:01 am

Check a large size text in Times New Roman
Check a large size text in Arial

The first is a serif font, see the little decoration at the end of the letters lines? These are the serifs. Avoid those kind of fonts.