I've been using PhotoScape for a few years now, and it has some great features. I often get my images a bit crooked,
sometimes deliberately due to lighting, and always fix them on PhotoScape.
PhotoScape Link
http://www.photoscape.org/ps/main/download.php
Last night, I was fixing some images and realised that it's the perfect tool for determining the degree of upset,
so I would like someone else who uses it to try it out, and post their opinion of it, and check that my instructions are OK.
These are my instructions:
Make sure you start with a square image, a rectangle goes skew whiff.
Open PhotoScape, click on Combine
select Image location from menu on the top left
find the image of the coin in the bottom menu (Images)
click and drag the image into the right side (Drop your photo here)
choose Edit, select 'Home' from the bottom left editing tools
choose the first little blue curved arrow
on the pop-up box in the top left choose Rotate
near the bottom of this pop-up box slide the button left or right, to the side that will result in your coin being rotated to it's upright position
take note of the number on the right of the slide bar, depending on whether the slide bar was moved Right or Left, the figure will either be positive or negative. If it's positive, deduct that number from 360 and that's the degree of Upset. If it's negative, then that's the degree of upset.
There is a handy grid that you can use to line up the coin, in my experience the centre of the top of the Obv runs just through the right of the 3rd visible Spire from the front of the Tiara and it appears to have a pearl that sits right on the edge of HM's hair. I have worked this out by using a 50c Obv image.
See image below.
$1 2001 CoF Obv Upright Postion
(http://i41.tinypic.com/sze4u8.jpg)
Great.....thanks Nancy.
I am not a Photoscape user but will download and give it a go.
Come on Nancy I just got me use to tinny pic's :winkextra:
I use an ancient shareware (registered) program called Picture Publisher but it has been obsolete for years. Maybe I should update to Photoscape or something similar.
PP has a rotate function and is accurate to 0.1º. Also on my computer is Microsoft Picture Manager 2010 (part of MS Office suite) that increments by 1º but will work to 0.1º increments if you manually over-ride the selection box figures.
So, check your software -you might already have something that allows rotation measurement. If not, follow Nancy's lead.
I would be interested to get recommendations for free image management software.
Playing with Photoscape now. Sigh, another learning curve.
A few months ago :-
http://www.australian-coins.net/showthread.php?tid=1012
Quote from: 'Fordprefect' pid='35382' dateline='1385347114'A few months ago :-
http://www.australian-coins.net/showthread.php?tid=1012
Pretty much the same procedure, but remembering to take note of the degree of rotation and not needing to save it. :angel:
All editors do angles of rotation. The hassle is always having the image alignment right in the first place. Which is why Goldy uses two cams. As for reference points, Goldy uses a line from the tip of the first A in Australia to the side of the E in Elizabeth. Doesn't really matter what you use as long as its easy and consistent.
I posted a multi page instruction many moons ago in one of the now defunct Forums and somewhere around my desk, I have the hard copy. It is similar to that of Nevols above but was done using ACDC Pro Photo program.
However, Nevol, if you rotated past 90 degrees, either + or -, will it still give you a reading say of + 134 or - 101. If it doesn't then some mathematical calculations would be required and if your no good on maths, then the result could be wrong.
In saying that, your description without the actual program in front of me on the computer screen is clearly visible in my mind.
All these methods are good PROVIDED that the coin is aligned perfectly before the scan is made.
Another way to measure those darn Upsets accurately.