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cropping

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cropping Terry50 18 Oct 09:21
  cropping rich404 19 Oct 11:23
   cropping Terry50 19 Oct 15:33
   cropping Terry50 21 Oct 08:18
    cropping rich404 21 Oct 09:59
     cropping rich404 21 Oct 10:04
      cropping Terry50 21 Oct 11:26
       cropping rich404 21 Oct 15:03
        cropping Terry50 21 Oct 19:25
         cropping rich404 22 Oct 07:36
     cropping Terry50 21 Oct 11:13
2020-10-18 09:21:03 UTC (8 days ago)
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cropping

Hello,
Could you please tell me how to do this? Let's say I crop a picture using only 25% of the content.

I would like to keep the image the same size instead of getting bigger.

So the exported image is only 25% as big as the original.

Thanks Terry

2020-10-19 11:23:51 UTC (7 days ago)
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cropping

Hello,
Could you please tell me how to do this? Let's say I crop a picture using only 25% of the content.

I would like to keep the image the same size instead of getting bigger.

So the exported image is only 25% as big as the original.

Thanks Terry

A quarter of an image is half the width and half the height but...

Do you really mean 'crop' where part of the image is selected and cut-out ? Use the crop tool and enter width / height values.

or

Do you really mean resizing the whole image down to quarter size? Use Image -> Scale image and set width / height to 50 %

see screenshot.

2020-10-19 15:33:22 UTC (7 days ago)
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cropping

A quarter of an image is half the width and half the height but...

Do you really mean 'crop' where part of the image is selected and cut-out ? Use the crop tool and enter width / height values.

or

Do you really mean resizing the whole image down to quarter size? Use Image -> Scale image and set width / height to 50 %

see screenshot.

Hello,
Perfect ! Just what I needed

2020-10-21 08:18:11 UTC (5 days ago)
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cropping

A quarter of an image is half the width and half the height but...

Do you really mean 'crop' where part of the image is selected and cut-out ? Use the crop tool and enter width / height values.

or

Do you really mean resizing the whole image down to quarter size? Use Image -> Scale image and set width / height to 50 %

see screenshot.

Hello, I thanked you for a good answer before I tried it out. I changed the width and length; which changes the selection square -- the problem is that the original size is kept and the background is either white or black. I want the selected size to stay the same size as the cropped picture (the selection) not the original.

The cropping works - the resulting picture doesn't have the trees, cars, roads, clouds which were not selected. But there is a big white space there.

2020-10-21 09:59:50 UTC (5 days ago)
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9

cropping

Lets get some terms sorted out.

Cropping is **removing** part of an image. Which results in a smaller image.

Scaling is changing the size of the image, **up or down**. The content looks the same, the size (in pixels) is changed.

< I changed the width and length; which changes the selection square -- Scale image (do not use the scale tool which works in a different way)

Set the units to percentage

Enter 200% and ok it.

The cropped image is now back to the original size.

Note scaling an image up or down involves interpolation of pixels and depending on the amount of scaling visible degradation.

If you can be bothered a demo of the above 50 seconds https://i.imgur.com/qKCfb7D.mp4

2020-10-21 10:04:21 UTC (5 days ago)
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cropping

Ahggg - why do you use this crummy mailing list forum when there are other better conventional forums - another try with some formatting removed

Lets get some terms sorted out.

Cropping is **removing** part of an image. Which results in a smaller image.

Scaling is changing the size of the image, **up or down**. The content looks the same, the size (in pixels) is changed.

Gimp 2.10.22 has a "Delete cropped pixels" option in the crop tool options. Make sure that is enabled.

That sounds like using the wrong tool, but I do not know what you are doing.

Not 100% sure what you exactly want but it seems first a crop down to a quarter size (remove part of the image), then a scale back up to original size.

Still working on a quarter of original size premise.

Stage 1

Use the crop tool, enable "Delete cropped pixels"

Draw a crop area any size in the canvas

In the crop tool options set width and height units to percentage

Enter 50% as the sizes

Move the crop area around the canvas to suit.

Hit the enter key to apply the crop.

Stage 2

Use Image -> Scale image (do not use the scale tool which works in a different way)

Set the units to percentage

Enter 200% and ok it.

The cropped image is now back to the original size.

Note scaling an image up or down involves interpolation of pixels and depending on the amount of scaling visible degradation.

If you can be bothered a demo of the above 50 seconds https://i.imgur.com/qKCfb7D.mp4

2020-10-21 11:13:47 UTC (5 days ago)
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cropping

Lets get some terms sorted out.

Cropping is **removing** part of an image. Which results in a smaller image.

Scaling is changing the size of the image, **up or down**. The content looks the same, the size (in pixels) is changed.

< I changed the width and length; which changes the selection square --
Scale image (do not use the scale tool which works in a different way)

Set the units to percentage

Enter 200% and ok it.

The cropped image is now back to the original size.

Note scaling an image up or down involves interpolation of pixels and depending on the amount of scaling visible degradation.

If you can be bothered a demo of the above 50 seconds https://i.imgur.com/qKCfb7D.mp4

Please tell me which forum is the best. As you can see by the attachment here in Gimp 2.10.14 I don't see any option enable "Delete cropped pixels" ???

  • enable "Delete cropped pixels"
    1.png (58.1 KB)
2020-10-21 11:26:14 UTC (5 days ago)
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Send private message

cropping

Ahggg - why do you use this crummy mailing list forum when there are other better conventional forums - another try with some formatting removed

Lets get some terms sorted out.

Cropping is **removing** part of an image. Which results in a smaller image.

Scaling is changing the size of the image, **up or down**. The content looks the same, the size (in pixels) is changed.

Gimp 2.10.22 has a "Delete cropped pixels" option in the crop tool options. Make sure that is enabled.

That sounds like using the wrong tool, but I do not know what you are doing.

Not 100% sure what you exactly want but it seems first a crop down to a quarter size (remove part of the image), then a scale back up to original size.

Still working on a quarter of original size premise.

Stage 1

Use the crop tool, enable "Delete cropped pixels"

Draw a crop area any size in the canvas

In the crop tool options set width and height units to percentage

Enter 50% as the sizes

Move the crop area around the canvas to suit.

Hit the enter key to apply the crop.

Stage 2

Use Image -> Scale image (do not use the scale tool which works in a different way)

Set the units to percentage

Enter 200% and ok it.

The cropped image is now back to the original size.

Note scaling an image up or down involves interpolation of pixels and depending on the amount of scaling visible degradation.

If you can be bothered a demo of the above 50 seconds https://i.imgur.com/qKCfb7D.mp4

====================
Lets get some terms sorted out.

Cropping is **removing** part of an image. Which results in a smaller image. Yes - I get the smaller image....but it's size is bigger .. look at attachments 1 and 2 and you'll see what I mean. I want the cropped picture to be the same size as if I had a scissors and cut it out.

2020-10-21 15:03:41 UTC (5 days ago)
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9

cropping

====================
Lets get some terms sorted out.

Cropping is **removing** part of an image. Which results in a smaller image. Yes - I get the smaller image....but it's size is bigger .. look at attachments 1 and 2 and you'll see what I mean. I want the cropped picture to be the same size as if I had a scissors and cut it out.

This mailing list format is ok for short questions and replies. Anything more and it is hard going. Try gimpchat.com plenty helpful people there. Nice photograph but you have me beat.

I looked at your attachments and nothing is wrong with your cropped image. The original 2.jpg is 1280x720 pixels and the cropped 2a.jpg is 438 x 426 pixels so how do you make the cropped size to be larger? Cropping in Gimp 2.10.14 is very straight forward see: screenshot 1.

The cropped image is already "the same size as if I had a scissors and cut it out." Where does the "larger" come from. Are you comparing "like-with-like" zoom in Gimp?

Earlier you wrote: The cropping works - the resulting picture doesn't have the trees, cars, roads, clouds which were not selected. But there is a big white space there." Using Gimp 2.10.14 where does the white space come from? Are you using some external image viewer? screenshot 2

2020-10-21 19:25:32 UTC (5 days ago)
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cropping

This mailing list format is ok for short questions and replies. Anything more and it is hard going. Try gimpchat.com plenty helpful people there. Nice photograph but you have me beat.

I looked at your attachments and nothing is wrong with your cropped image. The original 2.jpg is 1280x720 pixels and the cropped 2a.jpg is 438 x 426 pixels so how do you make the cropped size to be larger? Cropping in Gimp 2.10.14 is very straight forward see: screenshot 1.

The cropped image is already "the same size as if I had a scissors and cut it out." Where does the "larger" come from. Are you comparing "like-with-like" zoom in Gimp?

Earlier you wrote: The cropping works - the resulting picture doesn't have the trees, cars, roads, clouds which were not selected. But there is a big white space there." Using Gimp 2.10.14 where does the white space come from? Are you using some external image viewer? screenshot 2

Thanks for helping. I'll try gimpchat.com. It just may be my computer. You didn't see any option in tools in my attachment for deleting pixels did you? That would make a big difference.

  • NO delete pixels in tool options
    1.png (58.1 KB)
2020-10-22 07:36:38 UTC (4 days ago)
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cropping

Thanks for helping. I'll try gimpchat.com. It just may be my computer. You didn't see any option in tools in my attachment for deleting pixels did you? That would make a big difference.

Yeah, get a second opinion, just going round in circles here.

What you have now. A cropped image 2a.jpg That does not have any 'extra pixels / space / you-name it. The size (in pixels) is shown in Gimp, top of the window or if you want in Image -> Image Properties. ***There is nothing to erase***. Any extra space probably in your image viewer or web browser. Attachment shows 2a.jpg as seen in my web browser.

quote "You didn't see any option in tools in my attachment for deleting pixels did you? That would make a big difference."

There is the erase tool, that 'deletes pixels' but does not change the canvas (size in pixels)

There are the select tools, define an area and Edit -> Cut deletes the pixels, but does not change the canvas size.

Gimp always has several ways for anything, as an alternative to the crop tool.

Make a rectangular selection There is a rectangular select tool in the toolbox. Draw in for the required area.

Edit -> Copy (to copy the contents of the selected area)

Edit -> Paste As -> New Image.

--.

Bye