Upconverting 4:3: Anyone have results?

K

Kholi

Section Moderator
What if I wanted to take my DVX 4:3 480p, and make it 4:3 720p, but not 16:9? Just... err.. Have a larger 4:3 image?

Does anyone get what I'm saying?

In the uprezz tutorial, it shows how to shove it into a 16:9 frame, but I'm not sure if this same Photozoom method applies to making the DVX image a 720p image to fit into an HD presentation.

Does that even sound right?


Basically-- I want a Larger 4:3 frame to work with. I suppose the results won't be clean at all, right?

And the InstantHD thing is supposed to be worse than Photozoom?
 
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Kholi said:
What if I wanted to take my DVX 4:3 480p, and make it 4:3 720p, but not 16:9? Just... err.. Have a larger 4:3 image?

Does anyone get what I'm saying?

In the uprezz tutorial, it shows how to shove it into a 16:9 frame, but I'm not sure if this same Photozoom method applies to making the DVX image a 720p image to fit into an HD presentation.

Does that even sound right?


Basically-- I want a Larger 4:3 frame to work with. I suppose the results won't be clean at all, right?

And the InstantHD thing is supposed to be worse than Photozoom?
Click to expand...

Any scaling of pixels is detrimental but new software manages the pixel info in a way to minimize the damage. If you plan to output the image on a LCD or Plasma between 21"-42" you should be OK larger you will see degredation.

I don't know what you mean by Instant HD is probably worse? I used Instant HD to uprez 40 min of DVX footage for inclusion in an edit with material shot on a varicam. The DVX looked pretty darn good although not as good as the HD native stuff. The best uprez will occur with well lit and properly exposed footage, high action scenes may show some artifacts but stills, slow pans/tilts and moderate action should not present a problem. Phtozoom woks well for aspect conversion and I have not used for an HD uprez.

You can't add more pixels than you start with but the software will manage what you have pretty well. You have hardware options like the AJA KONA (Mac) or AJA XENA (Win XP) graphics cards but much more expensive.

Good shooting,

S Cannon
 
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scannon said:
Any scaling of pixels is detrimental but new software manages the pixel info in a way to minimize the damage. If you plan to output the image on a LCD or Plasma between 21"-42" you should be OK larger you will see degredation.

I don't know what you mean by Instant HD is probably worse. I used Instant HD to uprez 40 min of DVX footage for inclusion in an edit with material shot on a varicam. The DVX looked pretty darn good although not as good as the HD native stuff. The best uprez will occur with well lit and properly exposed footage, high action scenes may show some artifacts but stills, slow pans/tilts and moderate action should not presenta a problem.

You can't add more pixels than you start with but the software will manage what you have pretty well. You have hardware options like the AJA KONA (Mac) or AJA XENA (Win XP) graphics cards but much more expensive.

Good shooting,

S Cannon
Click to expand...

That's exaactly what I wanted to know. If you say that the DVX looks darn good (i know that's not awesome), that's all I want out of it. I'm not even going to upscale it to 720p, I just want a larger frame to screw around with
 
Also, I'm assuming once I do this, I plan to put it back into a 480p timeline (I know.. downconvert it right back to the original).

I assume I go back to the Photozoom Pro method to convert to 16:9... that should work right?

I need to just rip the DVX this weekend and test it all out.
 
Kholi said:
Also, I'm assuming once I do this, I plan to put it back into a 480p timeline (I know.. downconvert it right back to the original).

I assume I go back to the Photozoom Pro method to convert to 16:9... that should work right?

I need to just rip the DVX this weekend and test it all out.
Click to expand...

With Instant HD you don't have to output TIFF images and then re-import. Instant HD lets you drag the effect plug-in into the clip. You edit your 4:3 footage in a widescreen timeline drag the plug-in onto the clip(s) and set the size using a preset or the custom setting. Use the custom to set the clip size to 720 x 640 pixels. Then set the filters to better or best adjust the sharpness to around 6-8 the quality to 12-14 and the antialiase to 4-6. These are starting points and you can play to like the look. You can also edit in a standard 4:3 timeline, output a progressive scan video (no 2:3 pulldown) import this into a widescreen template and then add the Instant HD plug-in as above.

With Photozoom you have to export TIFF's for each frame. Import to photozoom set the dimensions to 720 x 640

Make sure the Unsharp mask is checked
I set the Intensity to 0.20 (default is 1.00)
I set the intensity to 0.50 (default is 2.50)

I leave all other settings at default.

Again this is my standard set up. To much sharpening adds noise to the converted video. Play with these to see what you like.

Remember that with either product your video must be 24p not 30p or 60i.

Good shooting,

S Cannon
 
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