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HND Image Editing

Colour Management Report

RGB Brief

This report is written by: Katie

HND1C

This project is designed to expand your understanding of professional colour management workflow, including:

•       input profiling

•       monitor calibration

•       printer profiling

•       ICC (International Colour Consortium) profiles.

You will be asked to watch a short video and answer the questions relating to this video throughout this document.

You may be required to input diagrams or screenshots as appropriate. This is under open book conditions, meaning that you can use the wider internet to help your research.

The deadline for this brief is Friday 14th May 2021.

Part 1 – Colour Management Basics

Watch this short video on YouTube and answer the questions below.

https://www.youtube.com/watch?v=kP1GgxeY2r0

Q1. What is colour management?

Colour management is a controlled conversion between the colour reprensations of various devices. It can be used with image scanners, digital cameras, monitors etc.

Q2. Why is colour management important for photographers?

Colour management is important as not all programs can reproduce all of the colour range that the human eyes can. The colour space use by each device is designed to produce within given colour space partiecpents

Q3. What colours are the following devices displayed in?

Displays (Screens, monitors, TV etc.): ROYGBIV / Red Orange Yellow Green Blue Indigo Violet

Printers: CMYK / Cyan Magenta Yellow Key

Q4. What does colour space mean?

Colour space is a specific group of colours. This varies on the where the colours are being displayed.

Q5. What are two of the most common colour spaces?

The most commonly used colour spaces are SRGB and adobe RGB.

Q6. Insert a diagram showing the LAB colour space, alongside other common colour spaces and note the differences.

Q7. Explain briefly the difference between ‘colour management’ and ‘colour correct’.

The colour correction process is to make the footage look exactly the way that the human eye sees things.Whereas colour correction changes the aesthetic of the image.

Part 2 – Studio workflow & Input profiling

Watch this short video on YouTube to help answer the questions below.

https://www.youtube.com/watch?v=iAWIYkmuH8Y

Q1. What is the industry standard colour profile for monitors?

The majority of recent high-quality LCDs are around 6500K. Although 6500K is a good starting point, there are times when you should deviate from it. A little lower colour temperature of roughly 5500K, for example, can provide a better screen to print match for your specific work environment.

Q2. Why should you view your images from DSLR  computer  to print under the same light source?

You should view your images on all devices using the same light source so you can accurately view the colours on each device

Q3. Why should you avoid editing in a room with colourful walls?

You should avoid colours that reflect light such as bright distracting colours. These types of colours end up causing you to see the colours in your images.

Q4. What is the benefit of using a colour checker card in the studio?

Using a colour checker card in the studio is useful to make you can match to the true colour when editing

Q5. What is the benefit of using tethered capture?

Tethered capture is when you take an image on your camera and it gets imported straight into lightroom for example to edit and for you to look at

Q6. What are the three main steps for colour management on set?

1.     Image creation

2.     Image processing

3.     Image reproduction

Part 3 – Post Production (Monitor Calibration)

Watch this short video on YouTube to help answer the questions below.

https://wwww.youtube.com/watch?v=60g0pg0pXFA

Q1. What are the two colour spaces you will most often be working in?

The two-colour spaces most work in are RGB and CMYK.

Q2. If you aren’t going print a lot of your images, what is the recommended colour space?

sRGB as it has a wider colour range. This is fine to use as the printer cannot see the full sRGB range but since we aren’t printing its ok

Q3. If you are printing a lot of your images, what is the recommended colour space and why?

The most recommended colour space is adobe RGB as it has more coour variety compared to other colour spaces like sRGB.

Q4. How regularly should you plan to calibrate your monitor and why?

You should calibrate your monitor once a month or whenever you change lighting conditions. so that you can create prints that accurately represent what you see on your monitor.

Q5. What does a colour meter (for calibration) do? Name three different colourimeter brands and note if they are external or built in.

The colour metre is used to determine the location of a colour on the XYZ axis of non-radioactive materials, in addition to being simple to use and inexpensive. There is densitometers, colour photometers and spectrophotometer.

Q6. What is the industry standard settings for monitor displays?

Gamma: 2.2 for windows, 1.8 for Mac

Luminance: 120 is the recommended for a standard LCD screen

Colour Temperature : If working with video use 6500k, if working with images you plan to print, use 5000k

Part 4 – Post Production (Printer Profiling)

Watch this short video on YouTube to help answer the questions below.

https://www.youtube.com/watch?v=nKI8BZqSuHw

Q1. What colour space should you edit in for print?

Adobe RGB

Q2. What colour space should you export your file in for print and why?

Adobe RGB as this is most compatible with printing as they cant see the full sRGB range

Q3. In terms of colour, why is it sometimes problematic printing on different paper types?

Depending on the paper, the quality of the print may vary. With low quality paper the ink will start too creep away from the text or photograph being printed. Also colour may be different depending on the quality

Q4. Describe what an ICC (International Colour Consortium)

profiles does?

An ICC describes the properties of a colour space, and range of colour it can output

Q5. What is the benefit of checking the ICC available for your image?

Checking the ICC of your image is beneficial to check the colour range your monitor can display or a printer can print

Q6. What does ‘gamut’ mean?

Gamut is the range of colour that a monitor can display or a printer can print

Part 5 – Photoshop Soft Proofing

Watch this short video on YouTube to help answer the questions below.

https://www.youtube.com/watch?v=mWGrfEZjQos

Q1. Why should we use Soft Proofing and what are the benefits?

It allows you to set better expectations and to minimize unexpected results during printing it also gives you more control over colour reproduction in images and overall designs

Q2. What are the main steps to soft proofing in Photoshop?

Open image in photshop

Select ‘view’

Proof setup

Custom

Custom proof condition

Device to simulate- select appropriate printspace

Rendering intent – select appropriate one

Check black point compensation

Tick preview box (on and off)

Click ok

Q3. Once you have soft proofed your image to the desired output result, how should you convert your file to the correct profile?

Select edit

Convert to profile

Use same settings as setting up soft proofing

Rename file

Bibliography:

https://www.loxleycolour.com/help/colour#colourtab2

https://helpx.adobe.com/uk/photoshop/user-guide.html?topic=/uk/en/photoshop/morehelp/color-management.ug.js

https://blog.breathingcolor.com/what-are-color-profiles/