Poor quality in panoramic photos

[MikeA]

My still camera facilitates the taking of multiple panoramic shots than can be later stitched into one large file - a narrow, long image (about 5 Mb in my case). I can access this photo as with any other photo. However, if I zoom into it with the intent of panning from left to right so the full height of the image fills the screen, the quality goes way down. It is not the photo file itself because I can bring that up in the Windows photo gallery and it zooms up wonderfully. Also, if I zoom any regular photo to the same extent (about 400x) that image remains pretty good and does not have the same drop off in quality. Any ideas? I looked at all of the options I could find, but saw nothing I could do to improve the quality.

Any ideas on how to pan manually from one photo to another, instead of using the panoramic pic? I tried this using the overlay track but of course the overlay photo covers up the main track.

[Trevor Andrew]

Hi Mike

What is the actual size of your image in pixels please.

[MikeA]

Hi:

It's Mike not Tony! But, the pixel size is 14680 x 2334.

[Black Lab]

I tried this using the overlay track but of course the overlay photo covers up the main track.

What are you covering in the main track, another clip? I don't understand what you are trying to do.

[MikeA]

Basically I have this long skinny picture formed from stitching together multiple photos of a scene to make a panorama. I then want to put that stitched photo into the video and then pan across the panoram from left to right. It's like a pan shot in video except it gives a smoother effect because no hand shake or speed up/down as one pans. If I put the panorama into the video and than use pan and zoom, the quality of the resulting video is poor and much lower than really exists in the photo. As I noted, I can do the same zoom (400x) on a regular still photo and get much better quality. I was wondering a) why, b) what I could do to improve it. My mention of an overlay was a workaround idea. My main question relates to a) and b), and if the answer is nothing can be done, are there other ways to get there?

[Trevor Andrew]

Hi Mike

Sorry about the name, another senior moment.

There was an issue with Pan & Zoom when using the Apply Anti Flickering on Images, seems that disabling this improved quality.

Go to Preferences- Edit tab-images-Untick option.


The image size of 14680 x 2334. is displayed in the preview screen at 720 x 576 for Pal, a much reduced size, so I think you should expect some image quality loss when zooming in.
If you are intending to render to HD then the size could be 1920 x 1080 keeping much of the quality.
Unfortunately with X3 you cannot set the Project Properties as HD.
What version of VS are you using.?

[MikeA]

Thanks for advice. I am using VS3 and have recently moved to HD (a reason for using VS, my Pinnacle Studio bogged down, although I prefer the interface). It will be interesting to see what things look like in HD. I guess the main puzzle I had is that zooming the panoramic picture to the same extent as a regular photo gave different qualities in the preview window, the panoramic one being far worse. Yes, for SD I expect loss in resolution of photos, since the quality of them is so good now compared to the primitive resolution of SD. But the inconsistency betweem photos within VS was a puzzle.

[BrianCee]

This subject has been covered before - have a read of this topic :-

http://forum.corel.com/EN/viewtopic.php?f=1&t=39099


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