Keystone correction: Does anyone know of a free or inexpensive editor that offers this feature? My Olympus M43 has it built in, but I have a few architecturals taken on various trips...

Rusty69 Loc: Toronto, Ontario, Canada

Does anyone know of a free or inexpensive editor that offers this feature? My Olympus M43 has it built in, but I have a few architecturals taken on various trips to the UK that would benefit from some tweeking. They were taken with my previous camera obviously.
Thanks in advance for any suggestions.

Cany143 Loc: SE Utah

Rusty69 wrote:

Does anyone know of a free or inexpensive editor that offers this feature? My Olympus M43 has it built in, but I have a few architecturals taken on various trips to the UK that would benefit from some tweeking. They were taken with my previous camera obviously.
Thanks in advance for any suggestions.

Most --even the 'freebies'-- image editor programs can perform keystone correction fairly easily. For some years, I used one called 'Picture Window Pro' for precisely this function (and little else, even though it had a fair amount of other capabilities). Originally, it was cheap, then after a number of years it was offered for free. You should be able to download a copy if you do some Google searching.

yorkiebyte Loc: Scottsdale, AZ/Bandon by the Sea, OR

Pixlr I believe has that!
Pixlr.com

Pablo8 Loc: Nottingham UK.

Old Photoshop still does the job.

russelray Loc: La Mesa CA

New Photoshop also does the job. It's not called "keystone correction" though. It's the "Perspective Crop Tool."

anotherview Loc: California

The "Transform Tool" in Adobe Camera Raw corrects key-stoning. ACR of course requires a subscription to Photoshop Creative Cloud.
Other, earlier versions of PCC have this tool as well, I understand.

Rusty69 wrote:

Does anyone know of a free or inexpensive editor that offers this feature? My Olympus M43 has it built in, but I have a few architecturals taken on various trips to the UK that would benefit from some tweeking. They were taken with my previous camera obviously.
Thanks in advance for any suggestions.

aphelps Loc: Central Ohio

Rusty69 wrote:

Does anyone know of a free or inexpensive editor that offers this feature? My Olympus M43 has it built in, but I have a few architecturals taken on various trips to the UK that would benefit from some tweeking. They were taken with my previous camera obviously.
Thanks in advance for any suggestions.

Photoshop Elements can do this easily. Use the skew tool. The older versions of Elements going back to at least v.11 have it. Older versions can be fairly cheap if you can find them.

PlymouthWoodworker Loc: Plymouth, MA

I have Photoshop Elements v14 that I paid $99 for. It does keystone correction. Click on Filter, then Correct Camera Distortion.

yorkiebyte Loc: Scottsdale, AZ/Bandon by the Sea, OR

PlymouthWoodworker wrote:

I have Photoshop Elements v14 that I paid $99 for. It does keystone correction. Click on Filter, then Correct Camera Distortion.

Uhhh.... Wow! I've always gone to "Image" then "Transform". Your way is easier!! I didn't see this before!!
Learn supthin' new ever'day!! Thank you, PlymouthWoodworker!

jcryan Loc: Las Terrenas, Dominican Republic

Gimp, Darktable & Raw Therapy are free open source software. All have this capability.

JimRPhoto Loc: Raleigh NC

Photoshop Elements has that feature. It is very simple to use. JimR

fetzler Loc: North West PA

Rusty69 wrote:

Does anyone know of a free or inexpensive editor that offers this feature? My Olympus M43 has it built in, but I have a few architecturals taken on various trips to the UK that would benefit from some tweeking. They were taken with my previous camera obviously.
Thanks in advance for any suggestions.

One way is to use Olympus workspace. This program only works images taken with Olympus cameras.

I know perspective control is a feature in PaintShop pro and I believe in Photoshop too.

Rusty69 Loc: Toronto, Ontario, Canada

You guys are awesome. I am still coming to terms with "terms" in my old age. I never realised that the keystone feature could have so many different determinants in the various menus out there. I now have some exploring to do. Thanks for all the great feedback, and do all please stay well.

Rusty69 Loc: Toronto, Ontario, Canada

Cany143 wrote:

Most --even the 'freebies'-- image editor programs can perform keystone correction fairly easily. For some years, I used one called 'Picture Window Pro' for precisely this function (and little else, even though it had a fair amount of other capabilities). Originally, it was cheap, then after a number of years it was offered for free. You should be able to download a copy if you do some Google searching.

I Googled and found the PWP app. Once I understood that "warp" was the command I needed (not available in Movavi or Faststone, my other editing programs), the rest was unbelievably easy. (see attached image of Wollaton Hall in Nottingham). There is a little paler look to the PWP image, but I imagine that is an easy fix.

My thanks to all who responded to my plea, especially Cany143. Cheers.

Before PWP warp treatment
Before PWP warp treatment...

After PWP - no other post processing

Bret Perry

Nice!