Home » Photoshop HDR »Techniques » Currently Reading:

How to Use The ‘Cookie Cutter’ Approach to Extending Dynamic Range

December 13, 2011 Photoshop HDR, Techniques 4 Comments

Written by: Charlie Borland

This is a pretty cool technique for those needing to extend image latitude or dynamic range. I tried it on several images and it worked well on some and not at all on others. It is certainly worth a try before moving on to HDR or other methods.

This technique is from Ellon Anon’s great book: Photoshop for Nature Photographers and its titled: The Cookbook Approach to Expanding Latitude. This is a very good book by the way, specifically aimed at nature photographers and you can buy it here.

To start, open two images in Photoshop, a dark one which has the perfect exposure for the sky or clouds or any areas that are important. Then open the bright one image which has detail for areas that were to dark in the other image.

I opened these two images from Arches National Park: one is the main exposure which has good detail throughout and is what could be considered the perfect exposure for the image. The second image is for the shadow areas and is a good exposure for those areas. There is a two stop difference between the two images: 1/8th second and 1/30 second.

With both images open, follow these steps:

  1. Using the Move Tool in PS and holding down the Shift key, drag the darker image on top of the lighter image. Holding the shift key keeps both images in perfect registration.
  2. Next, add a layer mask to the top/darker image.
  3. Select the background image by clicking on the image then Ctrl/Cmd: click to select the entire image.
  4. Now hit Ctrl/Cmd-C to copy the selection to the clipboard.
  5. Highlight the darker layer and then hold Alt/Option and click on the mask. This makes the mask appear over the image.
  6. Hit Ctrl/Cmd-V and the contents are pasted into the mask creating a contrast mask.
  7. Now click on the contrast mask and it will return to the main image and shows a reduction in contrast.
  8. Next, apply a Gaussian Blur to the contrast mask to allow the images to blend for a natural look. (Results of my blending are below.)
  9. Based on how blur is applied and the resulting contrast, you may want to apply a Curves Adjustment Layer to enhance contrast.

Here are my screen captures showing each step:

dyn range light How to Use The Cookie Cutter Approach to Extending Dynamic Rangedyn range dark How to Use The Cookie Cutter Approach to Extending Dynamic Range

The dark and light original images.

dyn range 1 How to Use The Cookie Cutter Approach to Extending Dynamic Range

The two layers with layer mask added to the dark layer

Then highlight the background image, Select All, and Copy.

dyn range 2 How to Use The Cookie Cutter Approach to Extending Dynamic Range

Click the mask icon on the dark layer and press Ctrl/Cmd-V pastes the clipboard contents into the mask

dyn range 3 How to Use The Cookie Cutter Approach to Extending Dynamic Range

Here is the contrast mask.

Click the layer mask again and you return to the image.

dyn range 4 How to Use The Cookie Cutter Approach to Extending Dynamic RangeHere is the image after dynamic range has been extended. It lacks contrast.

dyn range 5 blur 5 How to Use The Cookie Cutter Approach to Extending Dynamic Range

This image sets the Gaussian Blur to 5 and it helped contrast slightly.

dyn range 6 blur 20 halos How to Use The Cookie Cutter Approach to Extending Dynamic RangeHere I increased the blur to 20 and the halos are starting to really show.

dyn range 6 blur 250 How to Use The Cookie Cutter Approach to Extending Dynamic Range

This image has Gaussian Blur all the way at 250. Contrast is much better but the halos are so large it looks like a bad burn and dodge effort.

dyn range 7 curves How to Use The Cookie Cutter Approach to Extending Dynamic RangeSo I reset the blur to 5 since anything higher began the create the halos. Next I added a Curves Adjustment Layer and tweaked contrast that way.

dyn range final1 How to Use The Cookie Cutter Approach to Extending Dynamic RangeSo here is the final image. Two images with a two stop difference in exposure. Gaussian Blur set to 5 and a Curves layer to add contrast.

I have also tried a few other images that are completely different and was able to go much higher on the blur to find the right amount of contrast. Below is a coastal lighthouse where the blur was set at 27 and it brought in the sky nicely without adding halos.

dyn range comp coast How to Use The Cookie Cutter Approach to Extending Dynamic Range

This is a pretty effective technique that will work on some images and may not on others which illustrates the point that there are a million ways to do one thing on Photoshop.

Have any thought? Please leave a comment.

Ellon Anon’s Book: Photoshop for Nature Photographers.

anon cs5 How to Use The Cookie Cutter Approach to Extending Dynamic Range


bh wl How to Use The Cookie Cutter Approach to Extending Dynamic Range

showban.asp?id=8120&img=bh wl How to Use The Cookie Cutter Approach to Extending Dynamic Range

Be Sociable, Share!
No TweetBacks yet. (Be the first to Tweet this post)

Currently there are "4 comments" on this Article:

  1. Jeff Colburn says:

    Nice tutorial, thanks.

    Have Fun,
    Jeff

  2. Linda jones says:

    Thank you, very good tutorial that can be used in other pp software also.

  3. [...] I think this worked great but how would you have done it differently? Please leave a comment. Related Posts: How To Convert Old Images into Current and Compelling Concept Photos,    How to Use The ‘Cookie Cutter’ Approach to Extending Dynamic Range [...]

  4. [...] Posts: How to Use The ‘Cookie Cutter’ Approach to Extending Dynamic Range, How to Photograph the Perfect Campfire [...]

Comment on this Article:







VISIT OUR EBOOK STORE

visit ebook store

COOL STUFF




Subscribe

Timerhttp://www.facebookloginhut.com/facebook-login/

Subscribe by email:

PINTEREST, INSTAGRAM, AND OTHER SITES

Permission to pin, re-pin, or post images on Pinterest, Instagram (or any site) taken from this site is expressly forbidden without written permission from the copyright holder of the image. If you do not have that permission, do not pin, re-pin, or post images from this site on Pinterest, Instagram, or any other site. If you do re-pin or re-post any image from this site, you assume all liability in how any image re-posted or re-pinned by you, is used, infringed, or results in copyright violations. If we find you re-posted, re-pinned, or copied an image we will come calling. Why? Unauthorized and illegal use that is clearly defined under copyright infringement laws has occurred with images lifted off this site. Thank you!
  • About
  • Contact Us
  • Our Mission
  • The ProNature eBook Store
  • CONTRIBUTE TO PNP
  • The David Muench Interview Series
  • CATEGORIES
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010