GraphicConverter 5.3 problem

douglas holley

I've been using GC for years with no problem. After updating to 5.3 I find that if I open a high resolution image, greater than 72 x 72, do a 'select all' and copy the image to the clipboard it reduces the image to a smaller proportioned image. For example, an image with a resolution of 400 x 400 and 650 x 463 in size gets reduced to 117 by 83 when copied to the clipboard. Obviously when pasted into another application the image is way too small.



Any idea what the problem is? I've been emailing with GC support but with the time differential we are limited to 1 email a day. So far no solution.



GC Support says that GC copies correctly for them. Can anyone verify this for me and maybe have a possible solution. Preview, Safari and quickview all copy the full resolution to the clipboard.



Thanks,



Doug

mr. me

Quote:

Originally posted by Douglas Holley

I've been using GC for years with no problem. After updating to 5.3 I find that if I open a high resolution image, greater than 72 x 72, do a 'select all' and copy the image to the clipboard it reduces the image to a smaller proportioned image. For example, an image with a resolution of 400 x 400 and 650 x 463 in size gets reduced to 117 by 83 when copied to the clipboard. Obviously when pasted into another application the image is way too small.



Any idea what the problem is? I've been emailing with GC support but with the time differential we are limited to 1 email a day. So far no solution.



GC Support says that GC copies correctly for them. Can anyone verify this for me and maybe have a possible solution. Preview, Safari and quickview all copy the full resolution to the clipboard.



Thanks,



Doug

GraphicConverter X 5.3 works fine for me. I opened a JPEG image with more than 640 x 463 pixels, selected all, and opened from the Clipboard in Preview. Preview displayed a PICT file with the same number of pixels as my original JPEG.

douglas holley

It's the overall resolution being higher than 72 x 72 that causes the problem not the 650 x 463 size. What was the resolution of the image you opened.



Thanks,



Doug

mr. me

Quote:

Originally posted by Douglas Holley

It's the overall resolution being higher than 72 x 72 that causes the problem not the 650 x 463 size. What was the resolution of the image you opened.



Thanks,



Doug

300 x 300, if memory serves.

neutrino23

I'm also using GC 5.3. I just opened a large image 3072 x 2048 with 180 x 180 dpi resolution. Select all, copy, close, create new image from clipboard, get the same image. Go to the finder and show clipboard and get the same thing (opened really slowly but looks the same).

douglas holley

Are you sure that the image in the clipboard is the same size and resolution as the original?



When I copy an image greater than 72 x 72 resolution the image in the clipboard is factored down to a smaller size. See the formula in my original post.



Thanks,



Doug

neutrino23

OK.



Now I see something like what you reported.



I opened a large image in GC then did command-A, command-C then closed the image.



I pasted the image into a document in Create then cleared the clip board by selecting some text and doing command-C. Now I selected the image in Create and copied it then went back to GC and did a command-J.



Originally the image was 3072 x 2048 at 180 x 180 ppi.



Now it is 1228 x 819 at 72 x 72 ppi.



If I simply open the image, select all, copy, close window, then command-J then the original image is returned. No change to size or ppi. It looks like the image pasted into Create is the smaller one.

douglas holley

Bingo, now you've go it. This is my problem. I want to open images in GC, copy the image to the Clipboard and paste it into another application, in this case EasyCard.



The problem is that the reduced size image looks terrible in EasyCard (because of the reduced size), but the original image looks just fine.



So far I'm not getting much in the way of solutions. I'm waiting on an email form GC support and hoping.



At least you know understand what I am trying to do even if I didn't explain it very well in the original post.



Doug

mr. me

Quote:

Originally posted by Douglas Holley

Are you sure that the image in the clipboard is the same size and resolution as the original?



When I copy an image greater than 72 x 72 resolution the image in the clipboard is factored down to a smaller size. See the formula in my original post.



Thanks,



Doug

GraphicConverter 5.3 does not lose any of my pixels. I opened a 1280 x 960 288 dpi JPEG in GC. I did a Select All and copied the image and pasted the image into Preview. The image in Preview shows up as 1280 x 960 at 288 dpi. I copied the image back from Preview to GC. It showed up in GC as 72 dpi, but with all of its 1280 x 960 pixels. neutrino23 seems to have an issue with Create, but not with GC. I think that you would do well to look at the application that you are pasting into. GC works well.

neutrino23

Hmmm.



I tried the same thing GC -> Preview -> GC. I cleared the clipboard in between. I lost no pixels but the dpi changed from 180 to 72. In Preview the dpi was still reported as 180 but when I copied the image back to GC it changed to 72.



On the other hand, if I open a jpg in Preview it already has changed to 72 dpi. It seems Preview doesn't understand the jpg file as written by my Canon camera.



This is getting over my head. This may have something to do with how the file was formed. Maybe the tags are written differently by different programs which results in their being interpreted differently by other programs when they are opened.



Maybe you can get Thorsten to email you an image he knows is good and that he understands thoroughly to use as a test.

mr. me

Quote:

Originally posted by neutrino23

Hmmm.



I tried the same thing GC -> Preview -> GC. I cleared the clipboard in between. I lost no pixels but the dpi changed from 180 to 72. In Preview the dpi was still reported as 180 but when I copied the image back to GC it changed to 72.



On the other hand, if I open a jpg in Preview it already has changed to 72 dpi. It seems Preview doesn't understand the jpg file as written by my Canon camera.



This is getting over my head. This may have something to do with how the file was formed. Maybe the tags are written differently by different programs which results in their being interpreted differently by other programs when they are opened.



Maybe you can get Thorsten to email you an image he knows is good and that he understands thoroughly to use as a test.

This is somewhat tangential to the discussion, but I think it worth pointing out my cross-platform experience with raster images such as JPEGs. With MacOS 9 and earlier, there was virtually never a case when the pixel density changed when an image created by one application was transferred to another. If that same image was opened in a Windows app, however, its pixel density reverted to the 72 dpi default with no loss of pixels. I also found that I could not generally expect raster images to preserve pixel density when transferred between Windows apps. However, I could assume that no pixels would be lost. My MacOS X 10 experience seems to fall somewhere between my MacOS 9 experience and my Windows experience. It seems that pixel density is not a standard attribute of many common image file formats. As such, its preservation seems haphazard.