just an experiment in resizing a coin pic

1907Quarter

starting to pull my hair out

1907Quarter

so here's the problem: My original shot in image mode is a rectangle pixel. I want to crop the picture to eliminate the non coin part, but I don't know how to convert the free space into more pixels/KB I'm using Nikon View photo editor/photo impression. Can anyone help me out?

cosmicdebris

I use Photoshop and it has a tool that will let you select a circle. I select the coin only and then cut and paste it into a new image that is square.

earlwbollinger

I use Adobe Photoshop myself too.

But you my have a special tool for selecting odd sized objects in your software, in order to cut and paste.

DorkGirl

I have Nikon View also, never used it before, but I think I can help.....open the picture then hit the button that looks like a square with a pencil on it (edit). Now you are in the editor screen, go to the "view" drop down menu and click on "crop cursor", click on the image until you get a box(took me quite a few clicks until I got it), then you can adjust the box to fit around the image with the arrows. When you get the box the way you want it, click "file", then "save as" and put it in the file where you want to save it. Whew!!!

DorkGirl

Examples: before




after:

1907Quarter

I did exactly what you said but after crop and save the number of kb went UP, not down as I wished. What did I do wrong? I'm tring to save the good stuff but the opposite happened...

Rockhound

As I have commented before, it seems way to complicated to get good pix on this forum(or at least learning how to). It seems a lot of people use adobe photoshop so I might look into getting me a copy from them.Soon.

DominusDeus

If you want to preserve quality, take the picture with your camera on the highest quality setting AND largest resolution, as close as you can get to the coin (macro mode) while keeping it in focus. This will give you a LARGE pic to work with.

Load it in whatver image editing software (I use Adobe Photodelux.. came with my scanner). I use a circle selection tool and select just the coin, cut the coin from the image, and paste onto a new "page" (that is the same size as the coin).

From there, you can re-size the coin as you wish. Depending on the size of the coin, 50 to 25% of it's full size should be good.

The file size of the image also depends on the jpeg compression. Adobe Photodeux has from 0 (high compression/low quality) and 10 (low compression/high qaulity). The lower the compression, the larger the file size.

coinpage

You can try Irfan View it free to download. It crops image, but only in rectangles.

Dog97

Well first you have to make a reasonable sized picture. 400-600 dpi is enough, more dpi just makes a bigger file size, not a better picture. 100 dpi with my scanner makes a picture that's under 50kb so I don't even have to do anything to it before posting it here, in the case of Morgan Dollars. Small coins like dimes I can use up to 400 dpi & still be ok.
The smallest dpi my Nikkon makes is 640 dpi which makes about an 80 kb file size so I have to reduce those to post them here to meet the 50kb limit.
I found this free software a while back no spyware and it's really great because you can resize a whole folder of pictures at once by highlighting them instead of doing them 1 picture at a time.
When you said after you cropped it the kb went up, that is correct because the amount of data required to make the changes is larger than what you cropped out.
Morgans will fill up the whole view area on my Nikkon so I don't have to crop those but small coins leave a lot of area to crop out. The free image software that came on my computer takes care of that ok and it's easy to use.
Crop first, then resize.
That's what works for me anyway.