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DPChallenge Forums >> Tips, Tricks, and Q&A >> Jagged Edged Crops
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Sony Alpha a6400
Sony E 16-50mm f/3.5-5.6 PZ OSS
 04/27/2002 12:04:35 PM · #1
I am working on a photo for the current challenge and I'm having a problem... I took the photograph with the camera in a landscape view. I am trying to crop out a portrait (vertical 480x640) segment of the image. When I do this crop and create my new image with it, I am seeing jagged egdes on the diagonals in the image that I don't see when I crop horizontally. Any ideas on this? I have tried it with a few different software applications and get the same results....

Nikon D3300
Nikon AF-S DX Zoom Nikkor 18-55mm f/3.5-5.6G VR
 04/27/2002 12:39:07 PM · #2
Originally posted by jmsetzler:
I am working on a photo for the current challenge and I'm having a problem... I took the photograph with the camera in a landscape view. I am trying to crop out a portrait (vertical 480x640) segment of the image. When I do this crop and create my new image with it, I am seeing jagged egdes on the diagonals in the image that I don't see when I crop horizontally. Any ideas on this? I have tried it with a few different software applications and get the same results....



Try roatating the canvas 90 degrees and then cropping, it might just be a problem with the resampling algorithms.

Sony Alpha a6400
Sony E 16-50mm f/3.5-5.6 PZ OSS
 04/27/2002 02:31:43 PM · #3
Myk,

I tried that and got the same result with the jagged edges... I believe my problem was solved by a reboot. I haven't rebooted in two weeks so I went ahead and did that today and I think it cleared up my problem.

I decided to ditch this image anyway. I made some shots today that will serve me better in this challenge, I *hope*.
RIM BlackBerry Curve
Canon EF 85mm f/1.8 USM
 04/27/2002 10:25:05 PM · #4
Originally posted by jmsetzler:
Myk,

I tried that and got the same result with the jagged edges... I believe my problem was solved by a reboot. I haven't rebooted in two weeks so I went ahead and did that today and I think it cleared up my problem.

I decided to ditch this image anyway. I made some shots today that will serve me better in this challenge, I *hope*.



This might be because you were not looking at the result at 100% zoom ? Anything larger or smaller, especially not on multiples like 50%, 25% etc, will quite often show jaggies, due to the quick resampling algorihtms used.

Sony Alpha a6400
Sony E 16-50mm f/3.5-5.6 PZ OSS
 04/27/2002 11:11:42 PM · #5
I thought that may be the case too but the jagged edges were still apparent after I resampled to 480x640 and viewed at 100%... Anyway... I tossed this particular photo. I'm using another one that I think may perform a little better next week...


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