TSI Tools - Color Selector - Is it a Bug ?

[DidierS]

Hi,

I wanted to test the color selection on the TSI tool, and I didn't understand the result I got.
Maybe I used it wrong?
Can you tell me if you see the same thing, please?

Here are the scenario to reproduce it:

- Create a new document
- Fill the background with white color for example
- add a TSI layer
- select the color yellow for example
- select the “color selector” button and point to the background color (white)

Result : the TSI color changes ... to red.

It's a bit extreme, but it's weird.

I am attaching an affinity photo file.
There you will find a layer with an image containing a color palette.
By selecting these colors I find different colors.

Thank you in advance for your answers

Cordially

test-Select-Color.afphoto

[Oufti]

6 hours ago, DidierS said:

I wanted to test the color selection on the TSI tool, and I didn't understand the result I got.
Maybe I used it wrong?

Maybe this article can help you to begin with?

https://affinityspotlight.com/article/how-to-change-colours-and-preserve-colours-with-hsl-adjustments/

[DidierS]

11 hours ago, Oufti said:

Maybe this article can help you to begin with?

https://affinityspotlight.com/article/how-to-change-colours-and-preserve-colours-with-hsl-adjustments/

Hi,

Thank you for your response.

This article is very interresting but i don't want to use primaries or secondaries colors. I want to apply HSI on specefic color and then use the color selector. 
I think, there is a little problem (maybe a bug) when we pick the color on the picture. 

On others tools i didn't see that behaviour.

 

[Oufti]

I'm sorry but I don't understand precisely what you try to achieve nor how. 

Perhaps could you add a video capture showing what you do and where the problem sits?

[DidierS]

16 minutes ago, Oufti said:

I'm sorry but I don't understand precisely what you try to achieve nor how. 

Perhaps could you add a video capture showing what you do and where the problem sits?

Here a video of what i did.

The color selected is not the color "picked". So many colors are impacted when i use the HSI.
I gave the example file before.

 

[Oufti]

On 1/21/2024 at 6:23 PM, DidierS said:

- select the “color selector” button and point to the background color (white)

Result : the TSI color changes ... to red.

 

Thank you for the video. I now see what you want to do.

The problem could be that when you select white background, it's not properly a "color", which could explain that the color selected is difficult to determine. The same happens probably with browns and greys… 

When I try with color samples with a clear hue (like red, blue, green or yellow), I get better results.

 

For the color samples you have, HSL adjustment is perhaps not the best tool to use if you want to replace a color by another?

[DidierS]

1 hour ago, Oufti said:

Thank you for the video. I now see what you want to do.

The problem could be that when you select white background, it's not properly a "color", which could explain that the color selected is difficult to determine. The same happens probably with browns and greys… 

When I try with color samples with a clear hue (like red, blue, green or yellow), I get better results.

 

For the color samples you have, HSL adjustment is perhaps not the best tool to use if you want to replace a color by another?

hmmmm .... i am not ok with that. Others selectors like palette do the job. So why HSL not ?

[Oufti]

I could not explain it scientifically but in my view, hue is equivalent to an angle in the color wheel. If you try to match a color that is not in that wheel, it's more difficult. 

 

 

[R C-R]

11 hours ago, DidierS said:

The color selected is not the color "picked".

Admittedly, it is quite confusing (at least to me!) but as I understand it, it is not a color picker, it is a hue picker. So its function is to set a range of color values that will be affected by the shift sliders in the selected channel set. The English language help topic describes it as selecting a "color family."

There is also a video tutorial for the HSL adjustment. Although unfortunately it does not demonstrate the use of the picker it may be helpful in explaining how the hue value combines with the other two color parameters to define the range of what the adjustment sliders affect.