iMovie- Pictures become blurry after import

We are trying to make a slideshow of pictures in iMovie HD. We first put the photos into iPhoto, and the pictures looked great. Then, after importing them into iMovie HD, we noticed that the pictures looked blurry. We compared the pictures imported into iMovie to the pictures in iPhoto, and the ones in iPhoto had much better quality. We into the playback button in the preferences of iMovie HD to make sure that it was at the highest quality, and it was. We are very confused, and it will be greatly appreciated if someone can tell us the answer to our problem. Thanks! 🙂

Posted on Apr 12, 2005 7:07 PM

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140 replies

Nov 5, 2005 3:53 PM in response to Karl Petersen

Thanks for the response Karl.

The pixel size is the jpeg as it comes out of my rebel xt. I tried some from my 4 mp camera and it looked much better. They are 2272 x 1704. Perhaps that is the proper aspect ratio - I will need to check the XT book to see what it says - I thought I remember it saying 4:3 aspect. So the suggestion here is to take my photo's and crop them to the 720x528 or just get them to a 4:3 aspect. I will look into that and report back...thanks again.

Nov 5, 2005 5:39 PM in response to ziwi

The pixel size is the jpeg as it comes out of my rebel xt


Ziwi, I recall someone here several months ago reporting a similar problem with his Rebel xt. I'm not familiar with that camera's format so I can't offer much help, I'm afraid.

According to the information I find today, the camera's only aspect ratio is 3:2. That shouldn't be a problem, however. You may have to crop all images to 4:3 (or the ratio suggested in this thread for your iMovie project type.)

Resizing the image to 4:3, instead of cropping it, could be problematic.

If you can post a sample image somewhere on the Net I can download, I'd like to try to understand it better. Or to contact me privately, click on my name at the left.

A new message posted in this forum with "Rebel" in the name might get the attention of other Rebel users.

Karl

Nov 5, 2005 6:42 PM in response to Karl Petersen

Ziwi, I grabbed a sample resolution test image (shot by the Rebel XT) at imaging-resource.com.

http://www.imaging-resource.com/PRODS/EXT/FULLRES/EXTRES3456F.HTM

Like yours, this has a 3:2 aspect ratio, measuring 3456 x 2304.

Using Photoshop, I cropped it to two new images, both with a 4:3 aspect ratio. One was 1440 x 1056 and the other 2880 x 2112. Both were imported to an iMovie HD DV project with Ken Burn set at a zoom of 1.00

Viewed in iMovie, they looked to be of marginal quality. (The sample image contains lots of text, so that's not surprising.) I saved the project, to update the project's Timeline.mov. Then I opened the project's Timeline.mov in QuickTime Player. (To get to the movie, Control-click on the project package icon and choose "Show Package Contents". The Timeline.mov is inside the Cache folder.)

In QuickTime Player, I pressed Command-J, then set playback quality to High Quality ON and Deinterlace OFF. (QuickTime Pro is required.)

The image looks perfect. It's not quite the same image as was shot, for it was cropped from 3:2 to 4:3, but the image itself is fine.

I suggest trying that same techniqe to test the quality of your images. Here's hoping your photos look good too.

Karl

Nov 6, 2005 5:20 AM in response to Karl Petersen

Its funny you should mention that - in all my little tests I've been doing, I did notice NTSC showing in one iMovie project (I'm in the UK so use PAL). Only one tho', the rest were PAL - but I'd since deleted old tests, so not sure now what they were.

I also downloaded Onyx (maintenance and optimisation program) that someone mentioned may help with the, admittedly ever so slight, stuttering on some slides.

So I tried a new short iMovie slideshow after running Onyx, and it they look a lot better. Still not quite as good as the original iPhoto slideshow - there's a little blurriness on a church roof for example - but you get this often on tv anyway, for example if someone is wearing a particular kind of shirt or jacket it can go a bit wurby.

Anyway, thanks again Karl - it looks like its just about worked out - I think my new methodology might be to do the slideshows in iPhoto, without music, then import them into iMovie to add the music, and maybe add different fades at the start and end of the show.

Cheers,
Iain

Nov 6, 2005 6:33 AM in response to ziwi

Is there an easy way to crop to size in PS? I know how to crop, but is there a way to crop and have the actual pixels or aspect ratio in view as you do it or is it trial and error? May be a silly question, but I never had to transform images before to fit a certain aspect ratio. Each method I try seems to keep it locked at the aspect ratio - doing it freehand creates the trial and error concern...

Nov 6, 2005 7:10 AM in response to ziwi

OK - Think I have it...but with a question. if the picture size for DVD/TV is a 4x3 or 3x4 print - I just set the crop tool to match it and can get pixels of 640x480 and multiples upward - 1400x1050, 1600x1200 etc, but I am not seeing where 2880x2112 is a 4:3 aspect ratio. I am confused...am I missing something here?

Nov 6, 2005 10:27 AM in response to ziwi

OK - Think I have it...but with a question. if the picture size for DVD/TV is a 4x3 or 3x4 print - I just set the crop tool to match it and can get pixels of 640x480 and multiples upward - 1400x1050, 1600x1200 etc, but I am not seeing where 2880x2112 is a 4:3 aspect ratio. I am confused...am I missing something here?


Thanks for catching that. I misspoke; I tested some 4:3 images, but for these I calculated 2280 x 2112 and 1440 x 1056 based on their being multiples of the 720 x 528 minimum dimension. (Using 720 x 528 iMovie HD will fill the frame when importing with a 1.00 Ken Burns zoom. There's no black bars, which I prefer.)

About cropping. Note that with images as large as yours, you have the freedom to crop with iMovie HD's Ken Burns Effect with few constraints. So long as your zoom doesn't exceed the maximum zoom allowed for the size of source image -- the KB zoom times 720 x 528 -- everything will be fine. The image quality is just as good as cropped in Photoshop or any other program.

Remember, we crop to avoid the black bars when importing with a 1.00 Ken Burns zoom. If you want to avoid black bars at the top and bottom of a 3:2 image imported with a 1.00 Ken Burns zoom, you have to crop the image in Photoshop, iPhoto or some other graphics program. If you don't mind adjusting the zoom manually with Ken Burns to eliminate the black bars, crop it manually by zooming with the Ken Burns Effect.

(I find the Ken Burns Effect a bit clumsy sometimes, so when precision counts I tend to use another app to crop the image. Ken Burns makes re-cropping difficult because iMovie HD has a bug that fails to redisplay a previously-imported image clip correctly when the Ken Burns checkbox was OFF as the photo was imported. KB fails to redisplay the settings you used to import the image, and it REALLY screws up the pan. That makes Updating a previously-imported image almost impossible. It is not a problem when the KB checkbox was ON. So to avoid the bug, turn on the KB checkbox and set the Start and End zooms to match. The easiest way to do that is to set the Start setting, then Option-click on the End half of the Start/End slider thingy and the End will match the Start.)

So, if my tests with Rebel xt images are valid, the bottom line should be there's no need to pre-crop images. You can use Ken Burns to crop the images if you want and everything should be fine. Viewed in QT Player here as described above, the Rebel xt clips in the Timeline.mov look perfect.

Karl

Nov 18, 2005 12:41 AM in response to Karl Petersen

Three questions:
1. Just want to double check something - with iMovie HD, assuming you use the KBE on all still photos imported, is it best to hit "Create iDVD project" when you're done (unlike for iMovie 4, which you said not to)?
2. Also, I assume that the KBE effect is only needing to be on for photos coming from iPhoto, not for stills created from part of an iMovie (such as a still made from a clip that was previously a photo but then turned into a clip). Clear?
3. Lastly, for a movie brought in from iMovie 4 and for which I never hit "Create iDVD project", and for a clip in that movie made from a photo from iPhoto that I had turned the KBE on for, I should be o.k., right? Shouldn't have to delete it and reimport, correct?
Thanks so much.
P.S. What were the support people thinking? I just discovered that my subscriptions were all deleted, along with the bookmark option, can't seem to search using your name. Ugh.

Nov 18, 2005 5:48 AM in response to Rob And Pam Vergun

1. Just want to double check something - with iMovie
HD, assuming you use the KBE on all still photos
imported, is it best to hit "Create iDVD project"
when you're done (unlike for iMovie 4, which you said
not to)?


If I understand you, that's not quite true. There's never an ADVANTAGE to using the "Create iDVD Project" button. Once the KBE has rendered the images, ANY method you use to create the DVD is fine. The "Create iDVD Project" button offers no particular advantage over other methods.

But using the button may be a DISADVANTAGE if the KBE has NOT rendered the images. Then when you press the "Create iDVD Project" button, iMovie will ask permission to render the images. If you say Yes, iMovie will add the jaggies as it renders the images. If you say No, iMovie will tell iDVD to do the rendering, which it does pretty well.

The KBE renders the image with the best quality, in my opinion, so that's its advantage. An important side benefit, of course, is that once the image is rendered, iMovie won't ask to render the images again when you press the "Create iDVD Project" button, so the jaggies bug doesn't have the chance to gnaw on your images.

2. Also, I assume that the KBE effect is only needing
to be on for photos coming from iPhoto, not for
stills created from part of an iMovie (such as a
still made from a clip that was previously a photo
but then turned into a clip). Clear?


Remember, the KBE affects ALL images coming into iMovie from iPhoto, from a Finder window, or anywhere else. All imported images pass through the Ken Burns Effect. (For the image to rendered into video, the Ken Burns Effect checkbox must be turned on. All the other KBE import settings always apply, e.g. the duration.)

But a still you've created with the "Create Still Frame" command is NOT considered an imported image. The still does NOT pass through the Ken Burns Effect, and iMovie won't let you later Update the still with the KBE.

(The image is always terrible quality anyway, so you probably don't want it. Save the frame as a PICT instead, then import it.)

3. Lastly, for a movie brought in from iMovie 4 and
for which I never hit "Create iDVD project", and for
a clip in that movie made from a photo from iPhoto
that I had turned the KBE on for, I should be o.k.,
right? Shouldn't have to delete it and reimport,
correct?


That's correct. Once the image has been rendered into a video clip, it's like any other video clip. iMovie won't ask to render it.

Thanks so much.


You're welcome.

Karl

Nov 22, 2005 10:37 PM in response to Karl Petersen

Sorry - I've read this post over and over and am feeling in over my head. I am working with iPhoto photos (some of which were originally scanned from 4x6 photos, others were documents - either computer-generated scrapbook style or word documents). I think I am working with a DV project. But, when I try to delete each photo I had previously imported and replace it with a newly imported photo with the KBE turned on, 1.06 or 1.16 (since 1.16 seems to better remove the black bars) or anything, I'm having trouble. I click the button to start, enter what I want for zoom, then click to end, then enter the same number (since I don't really want a KBE, just using it to keep the jaggies away), then hit update. The program appears to somewhat at random choose the start and ending zoom levels. Ack. What am I doing wrong?
I guess I can do the cropping in iPhoto, but I want to make sure to use the KBE to keep the images nice...
Also, could you explain the part at the end more? I gather this is what I need for the ones created in Word, but how exactly do I crop to the minimum import size? It must be somewhere, but if it's not too much trouble, more detail here would be great.

Nov 23, 2005 8:10 AM in response to Rob And Pam Vergun

But, when I try to delete each photo I had previously
imported and replace it with a newly imported photo
with the KBE turned on, 1.06 or 1.16 (since 1.16
seems to better remove the black bars) or anything,
I'm having trouble. I click the button to start,
enter what I want for zoom, then click to end, then
enter the same number (since I don't really want a
KBE, just using it to keep the jaggies away), then
hit update. The program appears to somewhat at random
choose the start and ending zoom levels. Ack. What am
I doing wrong?


Make sure that as you set the Start zoom, iMovie is done running its preview animation. If the animation is running, you will accidentally set the Finish setting, not the Start setting. Then iMovie appears to deliver random zooms.

Instead, click on the Start setting. Pause. Let the animation finish. Click on Start again. NOW set the zoom for Start.

Then click on End and set that. Or easier, if you want Start and End to be the same zoom, Option-click on End, which copies Start settings to the End. They now match, so there's no animation.

...how exactly do I crop to the minimum import
size? It must be somewhere, but if it's not too much
trouble, more detail here would be great.


Cropping a photo to a particular size isn't so easy. There are tons of apps that let you RESIZE a photo, but not crop to a particular size like 720 x 528. (iPhoto won't do it, for example.) Photoshop's marquee tools offers that function. You can configure it to crop to that size.

Perhaps the most convenient is Snapz Pro. It lets you do all kinds of screen captures. Stills, movies, whatever.

One lets you pre-set the image size you want to capture, press Command-3, drag the selection box over the area you want captured, then hit Return. Very fast. So if you want to grab a series of 720x528 images of text from a Word document, Snapz Pro delivers it pronto, creating a sequence of numbered images you can import to iMovie.

Karl

Dec 7, 2005 7:31 PM in response to Karl Petersen

I have tried everything and could not get any kind of quality using the KB effect - I ended up using different transitions cropping with KB at a 1.00. I tried the slideshow export, different techniques mentioned above - I am just not happy with the quality. I am working on a file that is mixed files 4MP and 8MP so if it is a file size thing that should show it. Thanks for all your help on this, but I am just not happy with the result. the iPhoto slideshow on the computer is by far the best, but I can not replicate that quality to DVD. All tries have ended up being worse -until I got tired and settled. I don't want to crop the photos down as I may use some for other purposes. I just wanted the movie slide show to look like the iphoto slide show and could not do it.

Dec 7, 2005 8:18 PM in response to ziwi

ziwi, where exactly are you viewing the Ken Burns/iMovie slideshow when you judge its quality? I get the impression you're viewing it in iMovie, which never shows you all the quality that's there.

If you haven't burned a DVD and watched it on TV you may be pre-judging the quality.

If you have QuickTime Pro and know to how to turn on the high quality playback features of the movie, try viewing the "Timeline.mov" in the Cache folder of the project package in QT Player. Turn High Quality ON and Deinterlace OFF.

Sure, the iPhoto slideshow looks great because it's basically showing you the native images strung together side by side. If THAT doesn't look good nothing ever will. But your iMovie project can look good too if you build it right, and don't confuse the quality you see in iMovie with the quality that's actually there.

I wish I had a nickel for every time I've said that. 🙂

Karl

Dec 9, 2005 10:00 AM in response to Karl Petersen

Karl, I have burned a number of DVD's using various formats, iPhoto slideshow to DVD, DVD slideshow and the iMovie. Interestingly enough, I may have found an issue with the number of file being used. I created an HD 720 project in iMovie and it was 75% 4mp and the rest 8MP. There were a total of 155 pictures - that looked great - so I went back and I am re-trying the same process with the 220 pictures all 8MP...working on it now and will report the results later.

I wonder if there is an issue with the entire group as I did a mass import for both - I will see if all things are equal - If it comes out as before I can only conclude that there has to be an upper limit for iMovie based on number of pictures and file size...

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iMovie- Pictures become blurry after import

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