Negative Image - DPChallenge Forums

Canon EF-S 18-55mm f/3.5-5.6

04/19/2006 12:28:50 AM · #4

Use curves. More control over tones that way. (or levels). Basically swap the lightest and the darkest point.

Example:

Gordon

RIM BlackBerry Curve

Canon EF 85mm f/1.8 USM

04/19/2006 12:32:37 AM · #5

Originally posted by srdanz:

Use curves. More control over tones that way. (or levels). Basically swap the lightest and the darkest point.

and do anything else you like along the way I assume as well ?

The description seems to say not, but there don't seem to be any additional rules.

Kivet

Canon EOS-400D Rebel XTi

04/19/2006 12:32:54 AM · #6

this is going to be awsome! Love it already...

langdon

Canon EF 17-40mm f/4L USM

04/19/2006 12:33:40 AM · #7

I've updated the description to suggest that you can achieve the negative image look through post-processing.

Canon EF 100mm f/2.8 USM Macro

04/19/2006 12:38:40 AM · #8

I have an IR filter on order, should arrive by this weekend. It could be fun for this challenge...

Now that I've read the new description, I'm not so sure that I'll be doing post-processing any more. I'll try to achieve that look out-of-camera. Should be easier with the infrared filter.

Post-processed photos have a danger of looking too digital-art like, and that's not welcome here @DPC.

This is one extremely hard technical challenge, it appears to me at this moment at least.

Message edited by author 2006-04-19 00:39:00.

fotomann_forever

04/19/2006 12:42:16 AM · #9

Ways to achieve it Post-Process.

Channel Mixer
Gradient Map
Invert
Curves
Levels

Pick Your poison ;-)

Techo

Canon EOS-7D

04/19/2006 12:42:58 AM · #10

IR photography the same effect as inverting an image? I think both are different really.

04/19/2006 12:47:44 AM · #11

Originally posted by Techo:

IR photography the same effect as inverting an image? I think both are different really.

You are right, but I am not stating that, of course. IR and inverted colors are two different things. However, the challenge is to take a photo that "works well as a negative". An IR photo may be the solution to produce a photo that you did not have to post-process to death to invert it, and yet convey the image of a negative.

dleach

Canon EF-S 17-85mm f/4-5.6 IS USM

04/19/2006 12:49:08 AM · #12

//www.photoshopsupport.com/tutorials/or/cross-processing.html

Canon EF 100mm f/2.8 USM Macro

04/19/2006 12:52:17 AM · #13

Originally posted by dleach:

//www.photoshopsupport.com/tutorials/or/cross-processing.html

Quote the step 6 from this article:" ...set its blending mode to Luminosity..."

Don't get carried away, folks. This is not allowed in basic editing.

Techo

Canon EOS-7D

04/19/2006 12:55:53 AM · #14

Originally posted by srdanz:

Originally posted by Techo:
IR photography the same effect as inverting an image? I think both are different really.

You are right, but I am not stating that, of course. IR and inverted colors are two different things. However, the challenge is to take a photo that "works well as a negative". An IR photo may be the solution to produce a photo that you did not have to post-process to death to invert it, and yet convey the image of a negative.

Sounds way cool! a negative/invert of an IR would look very interesting. Inverting an image just takes a few clicks in PS and Photoimpact. I agree, the challenge is to take a photo that "works well as a negative". This should be lots of fun!

dleach

Canon EF-S 17-85mm f/4-5.6 IS USM

04/19/2006 12:57:21 AM · #15

Okay, invert->resize->USM->save for the web:

-->

Is invert allowed in basic?

howzit

04/19/2006 01:00:44 AM · #16

Originally posted by srdanz:

Originally posted by dleach:
//www.photoshopsupport.com/tutorials/or/cross-processing.html

Quote the step 6 from this article:" ...set its blending mode to Luminosity..."

Don't get carried away, folks. This is not allowed in basic editing.

Good point srdanz. It actually starts in Step 5 - changing the Curves adjustment layer's blending mode to Color and the image will combine the color shifts with the image's original luminosity.

Very useful tutorial though. Thanks dleach!

Message edited by author 2006-04-19 01:02:16.

justin_hewlett

Canon EOS-1000D Rebel XS

Canon EF-S 18-55mm f/3.5-5.6 IS

04/19/2006 01:02:45 AM · #17

Originally posted by dleach:

Is invert allowed in basic?

Yes, so long as it is applied evenly to the entire image.

Techo

Canon EOS-7D

Canon EF 100mm f/2.8 USM Macro

04/19/2006 01:03:20 AM · #18

Originally posted by dleach:

//www.photoshopsupport.com/tutorials/or/cross-processing.html

Just wondering what kind of negative film looks like the final result of the PP in that image. Because the whites are still white, the blacks still black, not vice versa.

yanko

Canon EOS-5D Mark II

Carl Zeiss 50mm ZE f/1.4 Planar T for Canon

04/19/2006 01:04:53 AM · #19

Originally posted by jimpearce:

Originally posted by srdanz:

Originally posted by dleach:
//www.photoshopsupport.com/tutorials/or/cross-processing.html

Quote the step 6 from this article:" ...set its blending mode to Luminosity..."

Don't get carried away, folks. This is not allowed in basic editing.

Good point srdanz. It actually starts in Step 5 - changing the Curves adjustment layer's blending mode to Color and the image will combine the color shifts with the image's original luminosity.

Very useful tutorial though. Thanks dleach!

Changing the blending mode in Basic Editing isn't allowed.

dleach