Image Sharpness ?

I've been goin' around with this NEW computer for weeks now and NO end in sight with the problems... I first started to do this project with iMovie and the Ken Burns curse. We won't go there. So, then I thought I'd give iPhoto a try. Same troubles.
My end product ? I want a DVD I can pop into any standard DVD player and view my images !
The problem, every thing works fine until I burn the project to a DVD. When played back the images they have turned to goo !!! Soft-out of focus junk !
When I play or preview my slide show in iPhoto it looks great ! The effects ( fades, and others) look great ! I think the DVD burn is doing something BAD with the encoding part ?
Here is what I'm doin'. Photoshop CS2 - Size and color correct all images and save as jpeg images. Use Photoshop's Widescreen HD frame. All photos are made to fit into this frame ! Import images into iPhoto. Arrange all images into the order I want and add effects. Send slide show to iDVD and burn to DVD. End product = Junk ! Oh yeah baby... Help !

Rick:
Are you using any KB effects? If not then I suggest you don't create the slideshow in iPhoto but in iDVD. iDVD will do a much better job of rendering stills than iPhoto or iMoive(which does is for iPhoto when you send it to iDVD from iMovie). Arrange your photos in an album in the order you want. Open iDVD, create a slideshow in your menu and enter the slideshow edit mode. Then locate the iPhoto album under the Media section of the Customize pane and drag into the slideshow bin on the right. Then you can select the transition to use and add your playlist and burn. You'll get much sharper images than having iMovie/iPhoto do the assembling and rendering.
I've not used widescreen but it should be the same regardless of the format. Also be sure to select Best Performance if it's under 60 minutes as I read in the iDVD forum that that does a better job on stills than Best Quality. You can check out the forum for further suggestions.
Hope this has been of some help. Good luck.
OT

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http://web.mac.com/rishisanyal/iWeb/Homepage/Sharpness.jpg
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Adjusting image sharpness and blur

This question was posted in response to the following article: http://help.adobe.com/en_US/photoshop/cs/using/WSB5D75388-8DC6-4c2d-B274-D311CE624673a.htm l

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Loss of sharpness upon image rotation: Aperture vs. other software

I have carefully studied the resulting loss of sharpness upon rotation/straightening of images. This topic does not apply to 90/180 degree rotations.
When any image is rotated (be it JPEG or uncompressed), there will be a slight loss of quality (seen as a loss of sharpness) due to interpolation. The method of interpolation applied will affect the degree of quality degradation.
Simply put, professional applications such as Adobe Photoshop and even Adobe Lightroom use superior interpolation methods when performing rotations (and who knows, perhaps for other transformations/scalings also?!). Apple Aperture, on the other hand, uses an interpolation method that renders a loss of image sharpness on par with inferior consumer-level software such as Google Picasa or iView Media Pro. Yes, folks, here's a clear reason to select Adobe Lightroom over Apple Aperture.
Please take a close look at the comparison yourself:
http://web.mac.com/rishisanyal/iWeb/Homepage/Sharpness.jpg
Make sure you are viewing the image I have posted at 100%, not scaled, in order to clearly see the inferior quality of images rotated with Aperture & Picasa.
Apple needs to address this problem by implementing a better interpolation algorithm with its straighten tool. It is sad that we are using and paying for a 'Professional' application that yields results on par with FREE software such as Google Picasa.
As much as I like Aperture for its other features/integration into Mac OS X, I am switching to Lightroom as of now. Straightening/rotating images is an absolute must, used by every photographer on a daily basis. The loss of image quality, therefore, is unacceptable.
Please post to this thread if you have experienced the same problem or are simply concerned over this. The more people that show concern, hopefully, the more likely Apple is willing to do something about this ASAP.

Surely any rotation (apart from the 90/180/270 ones) is by-definition a smoothing operation ? You have to take the values from adjacent pixels and combine them based on the rotation, then average (or use a point-spread function) them to rescale the values back into range.
Looks to me as though the Adobe products are just applying a sharpen operation immediately after the rotation, whereas Aperture isn't. Or Aperture could be using a simple average of the values, where Adobe is doing a gaussian summation-of-components or something similar.
My guess would be that they "do a quick sharpen", otherwise it would take longer to do the rotate. The only way you'll ever know is if the developers tell you though...
-=C=-

Image Sharpness ?

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