What does 100% crop mean?

Can some use a picture as an example to illustrate please? What is 100% cropped as opposed to 75% cropped if there is such a thing?

Open a picture in PS. Set the view to 100%. Make a crop of it that will fit on the screen, say 100px x 100px - doesn't matter. Save as a jpeg. Post to the web. You now have a 100% crop. It is more convenient, and takes less time to download and view over the web than the full sized image.

Yo got it in my book!

So there is no such thing as 75%, or 50% cropped?

If you reduce the image quality by 75%, or 50%, then crop, it you would.

Not really. I mean you can reduce the image by 25-50%, but that is kind of arbitrary. The only reason to do a 100% crop is to isolate and identify problem areas in an image, or to testify lens quality.

I sort of get your logic, but why would you do this?

That is what happens to 90% or more of the 'attached images' but not necessarily the ones that are linked to.

Here is a 100% crop:

All images made by a 2+ megapixel camera are likely presented this way, but not all are cropped. Don't you mean resized?

To me resized is reducing file size, cropping is reducing the ammount of image shown, and neither has to do with the physical size of the picture.

Me thinks we need to get a photo guru to step in here, someone with the right verbage to help everyone understand. This is one of those simple things that when explained poorly (as I am often guilty of) tend to only muddle the mind.

A 100% crop is posted without resizing. I'm no guru, but I know what I'm talking about here. The terminology I have used is straight from Photoshop, a standard. I'm not trying to start an argument, but I think the post that mentioned dpi (a printing term) is where everyone got confused. A 100% crop is a representative portion of an image that has not been resized itself, meaning one pixel in the file represents one pixel on the screen. Veiwing an entire image at that viewing resolution would be too cumbersom over the web, so we crop it to a manageable size.

I have used images for this hope it help.

what you see in a 100% crop is what you would see if you were holding the picture in your hand.

Try this in photoshop, right click on an image and select actual pixels, that is 100% crop or what the pic would look like if printed, now im getting confused.

Bruce

ok first click on the rectangular marquee tool, then change the dimensions in the box above to what ever size you want, I chose 800 x 600 because most peoples screen will be that, then click any where on the image, you will get the box as seen on screen, then goto image/crop and that a 100% crop of your image.

HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

you explained it better than me.

thanks

Bruce

Thanks, Bruce.

Careful! I think this is what is confusing everyone. Is that true if printed at 4x6? What about 20x30? A 100% crop is a portion of what you would see if viewed at 100% in an image editor.