Q&A: When I resize a picture to make it bigger in Photoshop CS4, the photo goes all blurry. How can I correct this?

Question by Bean: When I resize a picture to make it bigger in Photoshop CS4, the photo goes all blurry. How can I correct this?
I have no idea how to use photoshop.
I should add, its an old photo taken on a film camera that I scanned onto my computer.

Answer:

Answer by fhotoace
You don’t really need Photoshop to do that. You need to 1) shoot at your cameras highest resolution, 2) fill the frame in the camera so you don’t later have to throw away any of the image file and 3) make sure all your images are shot so not subject or camera movement causes blur

Spending $ 700 or so on CS4 to “fix” mistakes made in the camera is not a good economical strategy. Better so spend your money on a second lens and learn to use your camera to get the shots in the camera … an not need to use any photo program to fix mistakes

0 thoughts on “Q&A: When I resize a picture to make it bigger in Photoshop CS4, the photo goes all blurry. How can I correct this?

  1. > the photo goes all blurry.

    Now much bigger? If you make he picture bigger by about 2x, you probably be safe.

    Any bigger and you can’t help pictures going blurry. That is why they sell cameras with more mega-pixel.

    Sorry for the bad news.

    Good luck…….
    ============== UPDATE ============
    > I should add, its an old photo taken on a film camera that I scanned onto my computer.

    Rescan them in higher resolution. Always start out with high resolution.

  2. This is a common question. The answer is you really can’t. When you shoot an image you have a certain number of pixels. When you enlarge, you can increase the number of pixels but you can’t create new pixel information. So you’re really just making each pixel bigger, not the whole photo and that is why the quality goes down the bigger you go. You can always scale down, but not up.

  3. Unfortunately, you may not be able to as the original image you are trying to enlarge ( or “upsample”) has a lower resolution. When you take a low resolution bit map image and try to “upsample” it to a larger size, you get blurry pixels, as you have experienced.

    There are third party software plug-ins for CS4 that will interpolate (guess the closest pixel colors) and the image may look a little better, but again, it all depends on the original resolution of your image.

    Try a search for Genuine Fractals. This is a plug in for CS 4.

    You can also learn about upsampling by following this link:

    http://graphicssoft.about.com/cs/resolution/gr/smartscale.htm

    Good Luck!

  4. The photo is going blurry because it does not have enough pixels at the size you are trying to enlarge it. With the current image there are not many options.
    Are you able to rescan the picture? Check you scanner settings/properties and see if you can adjust it to scan the image at a high resolution. The bigger dpi or ppi number the less you will lose quailty. Try changing you scanner settings and then rescanning the image. Then you can try taking it into Photoshop and resize.

  5. you cant turn a passport photo into a billboard.
    try rescanning the original at a higher resolution. that may help a little. but most of the answers above are basically correct with pixelated effects caused by resizing larger.

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