How To Zoom Aa Shots

bloodbob · 11-09-03, 09:37 PM

1. NEVER DO NON INTEGER ZOOMS
2. USE PIXEL ZOOM/POINT ZOOM Bilinear,bicubic,ect alter the image which you don't want cause it to blurred and therefored anti-aliased even the NON AA IMAGE!!!!.

God how long this site been around for now

**saturnotaku** · 11-09-03, 10:06 PM

Quote:

Originally posted by bloodbob
1. NEVER DO NON INTEGER ZOOMS
2. USE PIXEL ZOOM/POINT ZOOM Bilinear,bicubic,ect alter the image which you don't want cause it to blurred and therefored anti-aliased even the NON AA IMAGE!!!!.

God how long this site been around for now

Need to break out the AshG universal translator here.

**MikeC** · 11-09-03, 10:23 PM

No, I think I read his translation he's trying to be rude. Its just hard to understand what he's being rude about. He'd probably do better not to come here if it upsets him so.

netviper13 · 11-09-03, 11:14 PM

Vambat...is that you?

ragejg · 11-10-03, 12:01 AM

I KNEW my compressed Dawn shots would tick SOMEBODY off...

intercede007 · 11-10-03, 03:56 AM

Quote:

Originally posted by bloodbob
1. NEVER DO NON INTEGER ZOOMS
2. USE PIXEL ZOOM/POINT ZOOM Bilinear,bicubic,ect alter the image which you don't want cause it to blurred and therefored anti-aliased even the NON AA IMAGE!!!!.

God how long this site been around for now

I don't know, but longer then you spent paying attention to the grammer lessons in school. Please, if you are going to rant, formulate your thoughts so they are semi-coherant. Sentence structure would be a great place to start.

DaveW · 11-11-03, 09:28 AM

I agree with him. The technique by which you enlarge an image will affect how the aliasing will look. With the right plugin, you could even make the jaggies disappear entirely by enlarging the image with a fractal algorithm.

Doing a bilinear or bicubic resample will blur the enlarged image and make the jaggies look smoother and better than they actually are. You should to an integer pixel resize, a.k.a. "nearest neighbour" in photoshop. You need to be careful with this too, though. You must resize to an exact multiple of original image proportions e.g. 2x the size, 3x the size, 4x the size etc. If you do a nearest neighbour resize to something like 1.5x the original image size, then every other pixel will be twice as big as its neighbour. This would make the jaggies look worse than they actually are.

I've also seen that photoshop 6 (dunno about later versions) is crap for enlarging images in this way, even with "nearest neighbour" resizing to exactly twice the original image size, it skips lines and adds others. This is why I only use Paintshop Pro when individual pixels matter.

11-09-03, 09:37 PM	#1
bloodbob Registered User Join Date: Oct 2002 Posts: 123	How To Zoom Aa Shots 1. NEVER DO NON INTEGER ZOOMS 2. USE PIXEL ZOOM/POINT ZOOM Bilinear,bicubic,ect alter the image which you don't want cause it to blurred and therefored anti-aliased even the NON AA IMAGE!!!!. God how long this site been around for now __________________ I come from planet viper days so don't call me noob. I own 2 nvidia cards and one ati card so don't call me biased.

11-10-03, 12:01 AM	#5
ragejg nV News Alumni Join Date: Sep 2002 Location: Finger Lakes of Hell, NY Posts: 5,399	... I KNEW my compressed Dawn shots would tick SOMEBODY off... __________________ 2010-2011 Reviews: GTX 570 \| GTX 580 \| GTS 450 \| GTX 460 \| GTX 465 Pre-2010 Reviews: 6600 GT \| XMS 4400 DDR \| SilenX Cooler \| 6800 \| 5900 XT \| Personal Cinema \| 5900 NU ______________________________________________ Phenom II x6 1090t @ 4.0 ghz \| Asus M498TD-EVO Am3 SLI nForce 980a \| 2x EVGA GTX 560 SLI \| 2x4gb DDR3-1333 \| Antec EarthWatts EA650 PSU \| 60gb Mushkin Calisto Enhanced Sandforce SSD \| 2x WD2500KS RAID 0 \| Sunbeam Tuniq 3 case \| 24" Asus 19x10 LED LCD \| 26" Panasonic 720p TV \| Sidewinder X5 mouse \| Logitech MX5500 & Revolution mouse \| Altec Lansing 5.1 THX-Certified audio \| Win 7 Ultimate \| desk \| couch "Stars must die so that I may live. I... stepped out of a Supernova."

11-11-03, 09:28 AM	#7
DaveW Its me! Hurray! Join Date: Jul 2002 Location: Brit in USA Posts: 1,203	I agree with him. The technique by which you enlarge an image will affect how the aliasing will look. With the right plugin, you could even make the jaggies disappear entirely by enlarging the image with a fractal algorithm. Doing a bilinear or bicubic resample will blur the enlarged image and make the jaggies look smoother and better than they actually are. You should to an integer pixel resize, a.k.a. "nearest neighbour" in photoshop. You need to be careful with this too, though. You must resize to an exact multiple of original image proportions e.g. 2x the size, 3x the size, 4x the size etc. If you do a nearest neighbour resize to something like 1.5x the original image size, then every other pixel will be twice as big as its neighbour. This would make the jaggies look worse than they actually are. I've also seen that photoshop 6 (dunno about later versions) is crap for enlarging images in this way, even with "nearest neighbour" resizing to exactly twice the original image size, it skips lines and adds others. This is why I only use Paintshop Pro when individual pixels matter. __________________ Core2 Q9400 @ 3.0, eVGA GTX 260, 4G DDR 800, Vista64

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11-09-03, 10:23 PM	#3
MikeC Administrator Join Date: Jan 1997 Location: Virginia Posts: 2,841	No, I think I read his translation he's trying to be rude. Its just hard to understand what he's being rude about. He'd probably do better not to come here if it upsets him so.

11-09-03, 11:14 PM	#4
netviper13 Treehugger Join Date: Jul 2002 Posts: 942	Vambat...is that you?