100% crop simply means you take a full-sized crop from the image..
Let's say you had an image that is 4000x2000 pixels. Now if you were to crop 1/4 of that image, you would have an image that is 1000x500 pixels. This would be a 100% crop..
Basically a 100% crop means you are cropping the picture without resizing it..
Thanks!Jordan Wilberdinghttp://diginux.net..
A picture taken with your digital camera is larger than your computer monitors screen. When you see the entire picture on your screen it's being reduced in size. If you were to view the image in Windows Picture and Fax Viewer there is an option to view the picture in it's actual size. A crop taken when viewing in it's actual size is a 100% crop.I just saw Jordan's post, sorry....
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Just to be clear for myself: The percent number refers only to the extent of resizing. For example, a '25% crop' has been resized so that the image has a quarter of the original number of pixels and then arbirarily trimmed or not trimmed at all. Please don't bother to reply if I have understood you correctly..
Thanks to you both,Nick..
Correct. Your example would basically be a crop (however large or small) with the image at 25% of it's actual size..
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I think you have it wrong actually..
Forget the cropping part. The 100% part refers only to the fact that the image has NOT been resized in anyway..
Usually a small piece is cut from the original image so you can see some detail at the original size of the file without having to download the whole file. The size of the piece cut out is totally irrelevant, it is just whatever was needed to illustrate a point..
It is a small pieceof the original file..
Make sense?.
Mark..
Mark,.
No, I think I got it right. Are you not just repeating what Jordan and Steve wrote and that I paraphrased?.
Nick..
Nick,.
I think 100% crop has a specific meaning i.e that the crop has not been resized so that you see the native pixel size (assuming the crop is small enough not to more than fill your screen). That is as already described by others..
25% crop etc has no such specific meaning. I will commonly use that expression to approximate how much of my photo has hit the "cutting room floor". So a 50% crop of a 3000 x 2000 (6Mpixel) photo would be circa 2100 x 1400..
100% crop has a precise meaning. Anything else is imprecise..
Chris Elliott.
*Nikon* D Eighty + Fifty - Other equipment in Profile.
Http://PlacidoD.Zenfolio.com/..
Chris,.
This seems to be the take home lesson for me -.
Crop size = 100%: The image has not been resizedCrop size not =* 100%: The author is being imprecise.
Nick.
* Curious - The editor here will display a 'smaller than' operator <and a 'greater than' operator >but not one after the other as in the 'not eqal to' operator.I guess it has something to do with the quoting system...
100% crop has a specific meaning when used in a post..
It is good practice to reduce images in size before posting them so that it doesn't take too long to display the post, and so that you don't have to scroll in all directions to see the complete image. Normally the way to do this is to reduce the image resolution from, say, 2000x3000 pixels to 400x600, but maintain the whole image..
Doing this to some extent improves the image quality - noise will largely be removed and soft or blurred areas may appear sharp..
If you want to demonstrate the quality of an image, say the lack of noise or the sharpness, then you need an image that will display at 1 pixel on the screen for each pixel in the original image. You do this by cropping to leave a small portion of the image only, not by reducing the resolution. This is a 100% crop.Chris R..
Chris R.
I'm clear on the usage now.Thanks to you and the other contributers..
I can imagine this thread will have been helpful to some other new digital image makers too..
Nick..
One of our members on the Oly Forum set up this page.....
Http://www.pbase.com/otfchallenge/100_crop.
I hope this helps..
LucyU ZI owner!Olympus C30-20Zhttp://www.pbase.com/lucyFCAS Member #98, Oly Division'Photography is the art of seeing what others do not.'.
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Nope..
I'll keep looking until I find one answer that's right..
BAK..
When you take a photograph, that original file is some big size a 6MP camera takes a picture 3000 pixels wide, and 2000 pixels deep..
When you look at that picture on your monitor, it is manipulated by the computer software so that all the content is reduced to fit on your monitor, which, for instance, might only be 1024 pixels wide, and 768 pixels deep..
If you happen to be looking at this image in Photoshop or Photoshop Elements, you'll see a percentage figure beside the name of the file; Img 1234 20%, for instance..
In Windows, if you hold down the Ctrl key and hit the + key repeatedly, the image will get bigger and bigger, so you can only see part of it, and the rest of the image will be off the screen, so you can only see it by moving the scroll bars..
EAch time you hit the + key you'll see the percentage figure change, and eventually 100 shows up..
Now, unless you have a big monitor with lots of pixels, lots of the picture will be off in space, and you'll only see a relatively small part..
Now, in Elements, etc., grab the cropping bars, and select a part of the image. Click or whatever is necessary, and now you have a 100 per cent crop; a cropped part of your original image, blown up to 100 percent of it's size on your computer..
In Elements, down in the lower left of the screen is the size, in inches normally, of the entire image, when viewed at whatever resolution per inch of your monitor. It's be something huge, like 20 x 30 inches..
BAK..
The fact that the image is or is not cropped is hardly important.The thing that is important is this:.
We are viewing the image so that one pixel on the screen equals one pixel in the image. That's all...
BAK wrote:.
When you take a photograph, that original file is some big size a6MP camera takes a picture 3000 pixels wide, and 2000 pixels deep..
When you look at that picture on your monitor, it is manipulated bythe computer software so that all the content is reduced to fit onyour monitor, which, for instance, might only be 1024 pixels wide,and 768 pixels deep..
If you happen to be looking at this image in Photoshop or PhotoshopElements, you'll see a percentage figure beside the name of the file;Img 1234 20%, for instance..
In Windows, if you hold down the Ctrl key and hit the + keyrepeatedly, the image will get bigger and bigger, so you can only seepart of it, and the rest of the image will be off the screen, so youcan only see it by moving the scroll bars..
EAch time you hit the + key you'll see the percentage figure change,and eventually 100 shows up..
Now, unless you have a big monitor with lots of pixels, lots of thepicture will be off in space, and you'll only see a relatively smallpart..
Now, in Elements, etc., grab the cropping bars, and select a part ofthe image. Click or whatever is necessary, and now you have a 100 percent crop; a cropped part of your original image, blown up to 100percent of it's size on your computer..
In Elements, down in the lower left of the screen is the size, ininches normally, of the entire image, when viewed at whateverresolution per inch of your monitor. It's be something huge, like 20x 30 inches..
BAK.
I thought I said this in my first post..
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Sherwoodpete wrote:.
The fact that the image is or is not cropped is hardly important.The thing that is important is this:we are viewing the image so that one pixel on the screen equals onepixel in the image. That's all..
Thanks for posting that. Beginners quite rightly have a problem understanding a term that includes the word "crop" when in fact there does not need to be any cropping at all..
More correctly, it is "100% view" or something like that..
But as long as we all understand each other..
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Stevef1961 wrote:.
I thought I said this in my first post..
Yes, you did. But I think BAK has phrased it more clearly..
Not having a go at you, all contributions on this thread have been of value, just giving BAK a credit for a good explanation..
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Lucy,.
I found lots more interesting stuff on this PBase Oly site, of which I assume you are are member. It looks like a bunch of friendly and tolerant people..
ThanksNick..