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Luminosity Masking Photoshop Panel Luminosity Masking Photoshop Panel www.digitalblackandwhite.co.uk Luminosity Masking Panel for Photoshop Page !2 Table Of Contents Table of Contents 1 Introduction 4 What are luminosity masks 5 Creating Luminosity masks 6 Luminance Layer. 9 Luminosity Masking Panel Introduction 11 Semi Theme Based Interface. 12 Panel Options 13 Highlights Mid-tones & shadows 16 Large Adjustment Layer Window 17 Luminance Layer 18 Target Zones 19 Contrast Painting 20 Utilities 22 Typical Digital Workflow 24 Conclusion 26 www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !3 COPYRIGHT NOTICE: You may use the Luminosity Masking Panel on an unlimited number of your own computers but the sale or redistribution of the panel is prohibited. Promotion of the panel is always welcome and you can do so by including the website address www.digitalblackandwhite.co.uk on your own personal website(s) or blogs , etc. A lot of my personal time goes into creating these panels and I ask you to respect that by not re-distributing the product to any third party without the written consent of myself. No part of the material protected by this copyright notice may be reproduced or utilised in any form, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission of the copyright owner. While reasonable care has been exercised in the preparation of this document, the author assumes no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. PDF DOCUMENT: This document has been compiled in Apple Pages version 6,0,5 LUMINOSITY MASKING PHOTOSHOP PANEL: The Luminosity Masking Panel has been designed to conform to the new requirements set out by Adobe for Photoshop versions CC and above. The panel is based on HTML5 and Javascript. REQUIREMENTS 1. Photoshop CC or above 2. Windows or Mac operating systems www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !4 Introduction Having used Photoshop on a regular basis for many years, it never ceases to amaze me that every day I seem to find something new which I never knew existed and no doubt will continue to do so for years to come. It doesn’t matter if you work in the traditional wet dark room or use a digital work flow using computer software to create the final photograph through your creative vision, the whole process should be taken just as serious as when you actually made the initial exposure. Throughout my own digital workflow, I am always striving to make it as streamline and as fluent as possible and this is why I have started to make my own custom panel extensions which sit very comfortably inside the Photoshop interface. The “Luminosity Masking” panel is a collection of routines which have been designed to help with building contrast selectively through the use of carefully constructed luminosity layer masks. Programming the functions and routines directly into the panel has made it more streamline to use without the need for external actions to be loaded. Throughout this document I will be referring to different keyboard keys. Today, my main computer that I use is an Apple iMac Desktop computer and therefore some of the keystrokes may be different to those on a Windows based operating system. For example, CMD on a Mac is equivalent to Ctrl on Windows and Option on the Mac is equivalent to ALT on Windows. Although the Luminosity Masking Panel appears to resemble similarities to the Contrast Masking panel which I created some time ago, it has completely been re-coded from the ground upwards to conform to Adobe Photoshop CC and future versions. www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !5 What Are Luminosity Masks Luminosity Masks allow us to make specific selections based on luminosity, or in other words, the brightness of a pixel. We use luminance masks to separate areas of different tones or brightness in an image. Luminance masking is not new and has been written about and used for many years. Many articles have been written on the subject of which some try to explain in a very sophisticated way what they are but what it boils down to is that they allow us to make more refined selections for each area of tone or brightness. One of the advantages of using this type of mask is that unlike regular selections, they create a smooth feathering effect. Unlike masks which are made with traditional selection tools, they create a selection which overlap with adjacent tones which give smooth transitions and maintain smooth tonal gradations or transitions throughout the image. Creating a regular selection and then applying a feather to that selection does not overlap which can result in harsh transitions between selections when making adjustments. Luminosity masks are built and stored as individual Alpha channels in Photoshop. www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !6 Creating Luminosity Masks Luminosity masks are relatively simple to create but at the same time can be very time-consuming due to the number of individual required steps. For example, from the background layer pressing the command and option keys as well as the number 2 key will create a mask based on the highlights which range from roughly zone six all the way to roughly zone eight. In the above image we can see this selection which is indicated by the marching ants. We can then save the selection to the channels by simply pressing the add selection to channels option which is located at the bottom of the channels Palette. We can use this selection as a starting point to create further selections of the highlight areas. We do that by intersecting the initial selection and breaking it down into different segments sometimes referred to as zones. To create an intersection of the mask, we hold down the option, command and shift key whilst at the same time clicking on the selection that we previously made. www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !7 The following image of a step wedge which goes from black to White shows us what it looks like as we intersect previously created masks for the highlights area of the step wedge indicated by the marching ants. If we want to create masks based on the darker areas or the shadow values of the step wedge all that we need to do is invert the initial mask. For example, pressing Option, Command and 2 on the keyboard will give us the initial selection on the highlights and to invert the mask, we press the keys shift command and I. www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !8 We can then use the same technique that we used on the highlights to intersect the shadow area and create individual masks for the different shadow zones. The process of creating the masks can be time-consuming because of the number of individual steps which are required in each operation. It is for this reason why I have programmed them all into one Panel for ease of use. No Actions One of the reasons I decided to integrate everything into one panel rather than having separate Actions was to make the entire process more user friendly. Over the years of using Photoshop, I have found that having a large number of individual actions in the action palette can lead to confusion and it is something else that we need to worry about if we ever need to reinstall Photoshop or move over to a new computer. www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !9 Luminance Layer. In the previous examples we looked at how to create the individual masks from the image background layer. In the digital workflow especially when starting out with a colour image, it is more desirable to create our luminosity masks based upon the luminance values. In other words our goal is to separate the colour information from the luminance values. If we were to create individual masks and then apply adjustment layers to those masks we also run the risk of changing the values of the actual colours which is something which we want to avoid because we are only interested in the luminance values of the image. So far, I haven’t come across an easy way in photoshop which allows us to extract the luminance/brightness values from within an image without actually making any changes to the colour information. The solution to this problem is to use the Adobe HSB/HSL Photoshop plug-In Filter. The HSB/HSL filter is activated quietly in the background whenever you press the Luminance button on the panel. www.DigitalBlackandWhite.co.uk © 2017 Ian Barber Luminosity Masking Panel for Photoshop Page !10 The HSB/HSL filter will basically extract the colour information and retain the luminance values. Effectively this will produce a greyscale image. The blending mode of the luminance layer is set to Luminosity which will allow the colour information of the file to show through the layer. One point I would like to make at this stage is that the colour image may looked a little less saturated which is because we are actually looking at the Luminosity. Changing the blend to normal will show the underlying image in greyscale as we have extracted or discarded all the colour information from within the file. Using the Luminance with the blend mode set to Normal can also give us a good starting point for our black and white conversion.
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