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Tag : color

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Are you a Photographer or a Retoucher? Read these books.

Every retoucher’s first steps. 

When I was starting out, and I was retouching my own photographs, I remember I didn’t have a clue about what I should be doing. For several months, I tried to learn as much as possible from YouTube, paid tutorials, and “how-to” videos on the internet. As soon as I learned a new trick, I tried to apply it to one of my images. I felt I was getting more and more comfortable with the tools provided by Photoshop and Capture One, but I knew I was still missing the real point. 

Every time, regardless of the actual content of an image, I just went through my “trick list”:

  • Frequency Separation on skin ✅ 
  • Colorize the skin-tone to make it uniform ✅ 
  • Dodge and Burn contouring ✅ 
  • Heavily colorize shadows and highlights. ✅ 
  • Add Sharpening ✅ 
  • Add Vignette ✅ 

Yikes right?! 

I was working on autopilot, and there was absolutely no thought process behind it. After a while, I started to realize that my beloved “trick list” was just working against me. 

Where to find better sources of knowledge? 

Step by step tutorials and “how-to” videos can be great, but unless you have a solid understanding of what an image needs, they can be useless or even detrimental to your work.

Over the past couple of years, I started to do some research to improve my understanding of visual arts and increase my knowledge regarding colors and composition. 

These books that I’m about to recommend to you are not recreational reads. Most of the concepts are difficult to understand. They do not often offer a practical way to implement what you read. Nonetheless, they point you in the right direction. They force you to become more thoughtful and change your perspective. They will give you interesting insights that will inevitably question workflow, whether you are a photographer or a retoucher. It can sound daunting, but in reality, this is actually a good thing since experimenting and re-evaluating our own beliefs is the only way to improve. 

Aspects that you can improve

You will realize why a certain combination of colors works and why another does not. Also:

  • how composition rules affect the perception of your images,
  • the relativity of the human vision,
  • the importance of correct color reproduction workflows,
  • the complexity of printing processes, and much more. 

It won’t be easy, but it will be worth it! 

Here is the list:

Theory of Colours. Goethe (1840) 

It talks about the nature, function, and psychology of colors. It is Goethe’s attempt to derive the laws of color harmony while he rejects Newton’s ideas about the color spectrum. His theories have been largely disproved over the years, so it cannot be considered a work of science; however, it is a fascinating read that illustrates the phenomena of colored shadows, after-images, and complementary colors that happen in our brain.


Point and Line to Plane. Vasilij Kandinskij (1926) 

In this book, Kandinskij analyzes the geometrical elements that form a painting and describes their characteristics. For instance, a line always indicates movement; it inevitably leads somewhere, forcing the eyes to move along its path. Depending on its correlation and position with other lines or points, the painter is able to evoke visual tension or comfort. Since we are still talking about bi-dimensional visuals, the same concepts can be used to improve your understanding of camera framing and composition.


Color Science and the Visual Arts. Roy S. Berns (2016) 

This is a highly technical book, and it covers topics like color measurement, color inconstancy, metamerism, physical characteristics of light, color management,  and color reproduction. Even though this read is mainly intended for curators, conservators or painters, the key points can be appreciated by photographers and retouchers as well.


Color Choices. Stephen Quiller (2002) 

This is both a theoretical and practical book, which shows how to use the color wheel to understand color relationships and mix colors more effectively. Then it explains how to develop five color schemes and use color in an impactful way. This book was intended to educate painters, but since it’s full of visual examples, it is highly recommended for retouchers and photographers as well to help them develop their color sensibility during their pre and post-production processes.


Interaction of Color. Joseph Albers (1963) 

This book allows us to understand the relativeness of colors thanks to its comprehensive visual examples. To the human eye, there are no “real” colors; in fact, Albers defines them as passive, unstable, but predictable. With the aid of practical exercises, he shows us how to change the perception of one color, make two colors look identical, make three colors look like two, etc. Albers does not dictate which colors you should use and how, but instead, he encourages exploration and experimentation, affirming that experience is always the best teacher.


The Art of Color. Johannes Itten (1961) 

Subjective feelings and objective color relations are the two main topics of this book. Itten defines the color’s role and function in a practical way while he analyzes the color wheel, the effects of color composition, and color expression.
In this book, he provides his famous list of seven color contrasts that can be used as inspiration to create striking effects and pleasing harmonies: the contrast of hue, of light and dark, of cold and warm, of complements, of saturation, of extension, and simultaneous contrast.

Want to read more about Johannes Itten? Check out this article: Type of artist & their behaviour with the color

Type of artist & their behaviour with color; three statues with different colored plastic bags

Type of artist & their behaviour with the color

Since we were little, we are judged by our zodiac sign or ascendant, pigeonholed by friends, family, or strangers. From time to time, we stumble over various personality tests. And we have to find out our strengths and weaknesses for job interviews.
After a specific time, we finally think that we know each other very well or know each other better than anyone else on this planet.

No matter how much you may have thought about yourself, this article gives you a new aspect to classify. It is to show you three different types of artists and how they deal with colors. A topic that we may never have considered ourselves, but it can be interesting for our future creative career.

Type of Artists & their behavior with the color

Those three types of attitudes towards color are derived from various groups of painters by Johannes Itten (cited by The Elements of Color – Johannes Itten (p.26f))

 

1. Epigoni

2. Originals

3. Universalists

First, there are the epigones, having no coloration of their own but composing after the manner of their teachers or other exemplars.
The term epigon preserves the meaning of “continuation” / “copycat” in Italian.
Second, the originals – those who paint as they themselves are. They compose according to their subjective timbre. Through the theme changes, the chromatic expression of their paintings remains the same.


If subjective timbre is significant of a person’s inner being, then much of his mode of thought, feeling, and action can be inferred from his color combinations.

Some painters used to include subjective proportions, which can be extended to subjective color. Subjective color is shown e.g., in the placement of the colors relative to each other, their directions, brilliance, clarity, or turbidity, their proportions, textures, and rhythmic relationships.

Third, the universalists, artists who compose from inclusive, objective considerations [e.g., color harmony, knowledge about psychology & color history]. Each of their compositions, according to the subject to be developed, has a different color treatment.

That there should be but few painters in this group are understandable, for their subjective timbre must comprehend the entire color circle, and this happens rarely. Besides, they must possess high intelligence, admitting of a comprehensive philosophy.

Learnings & thoughts

Depending on what type of artist you are, you will be booked either because of your specific style or because of your ability to imitate or create different styles.

Remember, both photographers and retouchers can stay in different types of artist groups. It is always an advantage to communicate which category you count yourself to and who is responsible for the color of the images within the creative process.

Note: Have a look at your portfolio — it can show you already which group you belong to.

After scanning the three different types, ask people around you if you have arranged yourself correctly. As is well known, self-perception is not always identical to external perception. Remember that.

Source:


Do you have any suggestions, additions, is this post out of date, or have you found any mistakes? Then we look forward to your comment. You are welcome to share this post. We are very grateful for every recommendation.

File structure to display the right black and white version for D&B

Luminosity vs Brightness

Conny Wallström posted a video on YouTube about “Brightness vs. Luminosity inside of Photoshop”. As always, a somewhat more technical topic, but fascinating:
It is about the possibilities of transforming an image into its black-and-white representation.
Primarily when you use this as a help layer while retouching, you have to be extremely careful — otherwise, you get massive color problems very quickly.

Conny shows the different interpretation possibilities in Photoshop:


 

The initial picture:

Bildschirmfoto 2015-05-12 um 23.05.04

Here we have six color areas of different colors. If we look at red and green in Photoshop, we have the following values:

In the RGB color model:

RED: R=255, G=0, B=0
GREEN: R=0, G=0, B=0

RGB = Red, Green, Blue.

In the HSB model, this is what it looks like

RED: H=0°, S=100%, B=100%
GREEN: H=120°, S=100%, B=100%

HSB = Hue, Saturation, Brightness.

If the saturation is set to 0% in HSB mode, pure white is the result.

Reduce saturation

If you make the example shown above black and white via Photoshop’s “Reduce Saturation”, this picture results:

Bildschirmfoto 2015-05-12 um 23.14.05

This indicates that this function is based on the HSL (Hue, Saturation, Lightness) color model. In the HSB model, all surfaces would be white; here they are neutral grey.
The “hue/saturation” adjustment layer also uses the HSB model.

Image Mode “Grayscale”

When our image is desaturated via the menu item “Image -> Mode -> Grayscale”, a different image is created: It is not based on the HSL or the HSB model. What we see here is perceived or subjective brightness (luminosity).

Bildschirmfoto 2015-05-12 um 23.18.13

Blending mode color

One way to look at an image in the luminosity equivalent of the colors is to have a black or white color layer above the image in the “color” blending mode.

Bildschirmfoto 2015-05-12 um 23.25.01

 

In practice

Why should the difference between luminosity and brightness matter?

Especially in Dodge&Burn work, it is helpful to hide the colors via a help layer temporarily. However, it is important to choose a help layer that interprets the subjective brightness. This is not the case in HSB mode.
If you work on an image in HSB grayscales, you can change hue (doesn’t matter how much), you won’t see any difference in the image — at least not as long as you have the help layer active. This can destroy a few hours of work.

Conny has provided a lovely example:

gelbblau
Yellow is always perceived as brighter than blue.
gelbblauHSB
The same image desaturated in the HSB model; both colors appear equally bright.
Im HSL-Modell entsättigt ist die subjektive Helligkeit wieder korrekt
In the HSL model desaturated, the subjective brightness is correct again.

Another example of his own:

Ein Farbverlauf quer durch die Farbskala
A gradient across the color gamut.
Auch dieses Bild wird im HSB-Modell einfach neutralgrau
This image is also only neutral grey in the HSB model.
Mit der schwarzen Ebene im Ebenenmischmodus Farbe bleibt die wahrgenommene Helligkeit erhalten.
With the black layer in blending mode “color”, the perceived brightness is maintained.

 

Hier wurde der HUE-Wert in einer Farbton-Einstellungsebene um 180° erhöht
Here the HUE value was increased by 180° with the hue slider.
HSB-Konvertierung: wieder wird alles grau
HSB conversion: everything turns grey again.
HSL gibt uns hier die korrekte Luminanz aus
Here again with the layer in “color” blending mode

Especially in portraits, where we are careful not to get color shifts and/or use a lot of time to correct them, the knowledge of these help layers is very important. Photoshop works in different places with these three modes – you should always be aware of which one is used where.

This article is a partial translation from the video “Brightness vs. Luminosity inside of Photoshop” by Conny Wallström.
Some things have been translated very freely and expanded with their own examples.
I strongly recommend you to watch the video above one or the other time – there you can learn a lot.

Do you have any suggestions, additions, is this post out of date, or have you found any mistakes? Then we look forward to your comment.
You are welcome to share this post. We are very grateful for every recommendation.