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FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 27 May 2018 (Sunday) 18:32
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FYI - Online Film Emulator

 
kirkt
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May 27, 2018 18:32 |  #1

No need to buy presets or LUTs, just use this handy online film emulation web app.

https://29a.ch/film-emulator/ (external link)

Pretty nifty. And, if you feed it a HALD image, you can make your own LUTs from the emulation.

Kirk


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Dan ­ Marchant
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May 27, 2018 21:35 |  #2

kirkt wrote in post #18634012 (external link)
Pretty nifty. And, if you feed it a HALD image, you can make your own LUTs from the emulation.

What's a HALD image and how would one go about creating one?


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WaltA
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May 28, 2018 11:05 as a reply to  @ Dan Marchant's post |  #3

http://www.quelsolaar.​com/technology/clut.ht​ml (external link)


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kirkt
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Post edited 6 months ago by kirkt.
     
May 28, 2018 12:04 |  #4

A HALD image is a 2 dimensional representation of a LUT (look up table) - it is a grid of color patches that are a reference. You can apply color edits to the HALD image and it "captures" the transformations. You can then use the transformed HALD image to apply those edits to other images.

Here is a page of various LUT references, including HALD images of various sizes:

https://3dlutcreator.c​om …--materials-and-luts.html (external link)

There are a few programs like 3DLUT Creator, Affinity Photo, Raw Therapee etc., that accept a HALD image as a LUT to apply a color transform.

In the context of the online film emulator, you would load the reference (unmodified) HALD and then apply a film emulation. Save that modified HALD and you can use it as a LUT to apply to other images. Photoshop does not accept HALDs as LUTs, but there are online converters that will accept the HALD and permit you to save it as a LUT (.cube, .3dl, etc.) for use in Photoshop.

The HALD images are usually untagged so you can assign them a particular color space that matches your working color space. Most LUTs are not color-space aware, so you need to know in what color space they are meant to be applied and make sure your image is in that space.

kirk


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SkedAddled
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May 28, 2018 17:26 |  #5

Wow. :!:

HALD, LUT, etc.

I really don't understand the possibilities, but I'm intrigued enough after reading through
a bit of the provided links to start learning more about this.


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kirkt
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May 28, 2018 19:38 |  #6

Here is some more detailed info, in the context of how Raw Therapee uses HALD images to do film emulation.

https://rawpedia.rawth​erapee.com/Film_Simula​tion (external link)

kirk


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kirkt
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May 28, 2018 19:39 |  #7

Here is what a HALD image looks like.

kirk


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SkedAddled
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May 29, 2018 17:06 |  #8

Yep, I saw the HALD images; thanks.

This is just a lot for the uninitiated to take in.
I'll try to absorb it in little baby steps.

Lots to learn.


CraigAF Σ 10-20|AF Canon 28-135 USM IS|MF Tamron SP 28-80|MF Tamron SP 60-300|MF Soligor 75-260|MF Soligor 400|MF Soligor C/D 500|MF Zuiko 50 f/1.8|More Manual-Focus glass
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FYI - Online Film Emulator
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