amiga.org
     
iconAll times are GMT -6. The time now is 02:32 PM. | Welcome to Forum, please register to access all of our features.

» Amiga.org » Amiga computer related discussion » Amiga Software Issues and Discussion » Changing a PAL image to NTSC

Amiga Software Issues and Discussion This forum exists for the discussion of the use, issues with, and fun brought about by classic and next generation Amiga software.

Reply
 
Thread Tools Display Modes
Old 01-18-2008, 06:48 AM   #1
punkyclown
Hobbyist
Points: 8,974, Level: 63 Points: 8,974, Level: 63 Points: 8,974, Level: 63
Activity: 2% Activity: 2% Activity: 2%
 
punkyclown's Avatar
 
Join Date: Feb 2002
Posts: 68
Send a message via AIM to punkyclown
Default Changing a PAL image to NTSC

A lot of the images that I have an enjoy display in PAL. This means some programs can display them on an NTSC monitor and some can not. How do I re-save the image to change it from PAL to NTSC?

Thanks
punkyclown is offline   Reply With Quote
Old 01-18-2008, 06:50 AM   #2
Krusher
Technoid
Points: 5,470, Level: 47 Points: 5,470, Level: 47 Points: 5,470, Level: 47
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: May 2003
Posts: 450
Default Re: Changing a PAL image to NTSC

You'll have to resize the images in a paint program or imagefx to said ntsc resolutions.
Krusher is offline   Reply With Quote
Old 01-18-2008, 06:51 AM   #3
meega
Cult Member
Points: 5,080, Level: 45 Points: 5,080, Level: 45 Points: 5,080, Level: 45
Activity: 5% Activity: 5% Activity: 5%
 
meega's Avatar
 
Join Date: Jul 2006
Posts: 952
Default Re: Changing a PAL image to NTSC

You remove a number of lines...
__________________
meega is offline   Reply With Quote
Old 01-18-2008, 12:12 PM   #4
Zac67
Kindred of Babble-on
Points: 12,421, Level: 72 Points: 12,421, Level: 72 Points: 12,421, Level: 72
Activity: 15% Activity: 15% Activity: 15%
 
Zac67's Avatar
 
Join Date: Nov 2004
Location: Erlangen, Germany
Posts: 2,851
Blog Entries: 4
Default Re: Changing a PAL image to NTSC

Actually just dumping a number of lines is yucky - diagonal lines/edges will get really ugly.

The real way is to vertically rescale the whole picture - lose a little sharpness, but keep the edges nice. You can do it with ADPro (can't remember how, sorry) or in Gimp, Photoshop, whatever. Just make sure you use splines, bicubic at best.
Zac67 is online now   Reply With Quote
Old 01-19-2008, 11:49 AM   #5
Kin-Hell
Cult Member
Points: 7,334, Level: 56 Points: 7,334, Level: 56 Points: 7,334, Level: 56
Activity: 1% Activity: 1% Activity: 1%
 
Kin-Hell's Avatar
 
Join Date: Dec 2005
Location: Cornwall - U.K
Posts: 601
Default Re: Changing a PAL image to NTSC

Quote:
punkyclown wrote:
A lot of the images that I have an enjoy display in PAL. This means some programs can display them on an NTSC monitor and some can not. How do I re-save the image to change it from PAL to NTSC?

Thanks
Just fyi, there is no such thing as a "PAL" Image or an "NTSC" image.

PAL & NTSC are different formats of Display. PAL has a 50Hz Frequency & NTSC has a 60Hz Frequency making NTSC a little less flickery.

I guess what you need to do is resize the Images that wont display on your monitor to a size that will (see your monitor Manual) or buy a monitor that will show those pictures in their true glory!
__________________
Kin-Hell is offline   Reply With Quote
Old 01-19-2008, 11:52 AM   #6
Krusher
Technoid
Points: 5,470, Level: 47 Points: 5,470, Level: 47 Points: 5,470, Level: 47
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: May 2003
Posts: 450
Default Re: Changing a PAL image to NTSC

NTSC has less scanlines then PAL, hence the image size differ. So, there are NTSC and PAL images
Krusher is offline   Reply With Quote
Old 01-19-2008, 11:59 AM   #7
Kin-Hell
Cult Member
Points: 7,334, Level: 56 Points: 7,334, Level: 56 Points: 7,334, Level: 56
Activity: 1% Activity: 1% Activity: 1%
 
Kin-Hell's Avatar
 
Join Date: Dec 2005
Location: Cornwall - U.K
Posts: 601
Default Re: Changing a PAL image to NTSC

Quote:
Krusher wrote:
NTSC has less scanlines then PAL, hence the image size differ. So, there are NTSC and PAL images
It's a bit like the chicken & the egg thing. Which came first?

A lot in life depends on which side of the fence you stand on when you first took grasp of Science! ;-)
__________________
Kin-Hell is offline   Reply With Quote
Reply

Bookmarks

Tags
image , pal , ntsc , changing

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
CHANGING A NTSC A1200 INTO A PAL A1200 Darrin Amiga Hardware Issues and discussion 7 10-05-2007 11:24 AM
changing screenmode theformula Amiga Software Issues and Discussion 5 06-26-2007 07:35 AM
changing background os 3.5 amazing Amiga Software Issues and Discussion 4 02-18-2007 12:13 PM
Changing the Multiplier on the ppc Aminux Amiga Hardware Issues and discussion 5 12-31-2005 09:54 AM
amiga.org's image is slowly changing again... iamaboringperson Amiga.org site announcements 64 04-05-2003 10:44 PM