help! i suck at math!
- Started
- Last post
- 15 Responses
- mg33
Here's a Photo editing question for you, in Photoshop.
I have a photo that is 19.5x33.89 that I want to print as an 8x10.
Obviously these sizes are not proportionate. I'm going to have to reduce the height quite a bit.
How do I figure out how to keep the photo at it's 19.5 width but reduce the 33.89 height to correspond to 10"? It's a 72 dpi photo that I'm going to print, so I want to keep the size doubled for quality's sake and just have the printer reduce it down.
Any ideas? I've done this before but I'm drawing a huge blank.
- monNom0
photoshop crop tool
enter in your desired size in inches, and your output resolution then crop.
- mg330
Actually I think this will work:
Create a new blank image that is 16x20, paste in the photo, crop it appropriately, and then it's proportionate to 8x10.
- slappy0
open photoshop>Image>Canvas Size...
then set the unit of measure to inches.
- slappy0
or if you are a complete tard
Image>Image size> set the resolution to 300 pixels/inch and set the 19.5 inches to 8 inches
Image>Canvas Size>set the 33 inches to 10 inches
- AndyRoss0
Let Photoshop do the math. That's how to do it.
But, you know, nobody prints photos anymore. Just set it as the wallpaper on your computer, and when you get tired of it, or get a better one, you can delete it.
If you print it, you have to find a place to put it, and keep it dry, and maybe mat it, or frame it, and all that bullshit. Plus prints never look as good as the image looks onscreen. The colors are never as intense, and the chiaroscuro is never as smooth.
So nobody prints photos anymore. Except if it's for an old person who doesn't know how to use a computer, or something.
- mg330
For you AndyRoss:
- slappy0
I still print photos dude, but thats becuase I dont have a 300dpi 40 inch monitor with a matt canvas finish :D
- AndyRoss0
Not printing photos is great:
it's good for your carbon footprint; you don't empty out all those horrendously non-biodegradable ink and toner cartridges; you don't cut down any trees. Sure, you burn a little more electricity, but probably less than it would take to make the paper and ink for the print.
I don't think the world is going to hell. I think it's changing, and I'm trying to help it along.
FFS
- duckofrubber0
19.5 8
------ = ------
x 108x = 195
x = 24.375
- well shit, that didn't work at all.duckofrubber
- thanks for truncated my spaces QBN!duckofrubber
- OSFA0
to make it easier on you I came up with this elemental equation...
- ukit0
Now a more interesting, but still very basic, example:
Suppose we have a set {0, 1, 2, 3, 4}, with operators ┼, ●. The ┼ is addition, but the result always brought back to {0, 1, 2, 3, 4} by going modulo 5. E.g. 1 ┼ 4 = 0, 4 ┼ 3 = 2. The ● is multiplication, but also modulo 5, e.g. 3●4 = 2, 2●2=4, 2●3=1.
Now suppose we want to solve the equation x●x = 4. This has two solutions, being 2 and 3 (3●3 is 9 modulo 5, which is 4). Now suppose we have the equation x●x = 2 and x must be in the set {0, 1, 2, 3, 4}. This equation has no solution. Again, we can introduce a new symbol , with the abstract property Λ●Λ = 2. Now we extend the solution space to the set {0,1,2,3,4,Λ}. Now we created a new number system and with the operators ┼, ● we can have expressions like 2┼Λ, Λ●4, etc. By introducing this new symbol and keeping it as a purely abstract entity, with the property Λ●Λ=2, we add a lot of new arithmetic to our simple system and we allow the solution of all equations of the form x●x=b, with b any number from {0, 1, 2, 3, 4}. E.g. 2●Λ is a solution for x●x= 3. (2●Λ●2●Λ = 4●Λ●Λ = 4●2 = 3), the other solution for this is 3●Λ. The original solution space has 5 elements, the extended solution space has 25 elements.
- drgs0
10 / 8 = 1.25
19.5 * 1.25 = 24.375
- emecks0
all your deliberations and nobody thought to point out that it is "maths" and not "math" - it's a fucken plural people. pffffffffffft.
- ribit0
Math(s) shouldn't be in use for this task. Size to any width you need, then crop to a proportion - without having to figure out a number in inches or pixels - using the constrained proportion in the Selection tool (with 8 and 10 entered) and then Crop.
- ribit0
"It's a 72 dpi photo that I'm going to print"
btw '72dpi' is a myth, its just x by y pixels... maybe its small (maybe its not)... '72dpi' is just metadata attached to a bitmap and doesn't tell us anything about the quality of the image you are working with.