Question

Drag and Drop support for Axes?
Does Matlab have any support for 'drag and drop'? Here is a screen capture of my current 'imaging' application : As you can s...

3 years ago | 1 answer | 0

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Answered
Search 3D RGB array for the closest match?
I think I found a solution (I'm sure there are other approaches, surely more efficient, but here goes). It involves using DeltaE...

3 years ago | 0

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Question

Search 3D RGB array for the closest match?
In my humble script, I managed to capture the 3D location on a scatter3 graph (see my previous question) out of a pushbutton uic...

3 years ago | 1 answer | 0

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Answered
Retrieve 3D location from clicked pixel / datatip position
Not a "perfect" answer but I think it's 'workable'. First, I added a pusbutton to the figure. Then I use this code, to obtain t...

3 years ago | 0

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Question

Retrieve 3D location from clicked pixel / datatip position
I attached a copy of my code (I did not includes the images). My question is how would I retrieve the CIE Lab color coordinates ...

3 years ago | 1 answer | 0

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Question

Stubborn annotation? Cannot be found by a search? Even though it exists...
I'm using a 'line' annotation to show a selected pixel color in my script. I programmatically create the annotation using this c...

3 years ago | 1 answer | 0

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Question

setappdata, where to verify?
I'm slowly progressing on my way to Matlab "nirvana"... How would I go about checking whether an element has indeed been added...

3 years ago | 1 answer | 0

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Question

getappdata / setappdata does not work for me?
I am trying to improve my code by adopting 'better' programming practices. I want to start using into the setappdata functions a...

3 years ago | 2 answers | 0

2

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Answered
Create (plot) sRGB gamut, using the boundary function?
Here's my code : colorListAB(isoog,:) = 0.5; % Ramène les valeurs à gris row = find( colorListAB(:,1)~= 0.5 ); AA = ...

3 years ago | 0

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Question

Create (plot) sRGB gamut, using the boundary function?
I would like to show a gamut outline when the student checks off the sRGB checkbox in the figure. On the left, is the result of ...

3 years ago | 3 answers | 0

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Question

Is it possible to improve the performance of my script?
i'm still very new to Matlab and probably go wrong about a lot of things. I needed to add a popupmenu to my figure, to let the s...

3 years ago | 2 answers | 0

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Question

Merge two separate figures into one
In the attached code, I use two separate figure windows. But how could I bring them under "one" figure? I guess I have to use ...

3 years ago | 1 answer | 0

1

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Answered
Using Coordinates from Figure(1) to index into Figure(2) scatter
Can't say for sure why I was having an error in the first place, when trying to set the slider value through a variable, but Mat...

3 years ago | 0

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Question

Using Coordinates from Figure(1) to index into Figure(2) scatter
I have a small difficulty... As you can see below, my script loads an image into a first Figure and then display a second figure...

3 years ago | 1 answer | 0

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Question

Lost in "Handle Land"...
I'm trying to index into a clicked image. I first read the image in and then, inside a nested function, I call imshow() : A = i...

3 years ago | 1 answer | 0

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Question

How to slice an RGB image in CIE L* ranges?
I have created a script where I can load an RGB image, convert it to CIE Lab (easy) and 'sliced' it in discrete levels. The code...

3 years ago | 1 answer | 0

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Question

Suggestions to improve script performance?
This is the result of my script, graphically : It's not a DaVinci but it's 'working'. I tried to use what I thought was Matla...

3 years ago | 2 answers | 0

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Question

Is it possible to change the background color of data tips?
I get this result : You see? I wonder what property controls the background color of the data tip?

3 years ago | 2 answers | 0

2

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Question

Meshgrid or other structure?
Is there any way I can code a meshgrid to get this type of data : I'm trying to create a 2D 'table', I guess, where on the x ...

3 years ago | 2 answers | 0

2

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Question

Help with effective data structure, to represent CIE Lab ab diagram
I'm at a point where I'm making progress on my project even though I'm surely not approaching it from an efficient coding perspe...

3 years ago | 0 answers | 0

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Question

Add data tips to non-supported chart
I'm creating a 2D graph, element by element, using rectangles. This is my current code: clc fig=figure('Position', [600 300 10...

3 years ago | 1 answer | 0

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Answered
Unable to create custom colormap from RGB data?
Oopsy, doopsy! I just realize there are values > 1.0 in those columns! Oh boy! Egg on my face... Here's the revised code : for...

3 years ago | 0

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Question

Unable to create custom colormap from RGB data?
Still bogged down in the difference between an array and a matrix... Everything was working well until I stumbled upon the foll...

3 years ago | 1 answer | 0

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Question

Use colormap to color axis?
From reading the documentation, it seems axes colors can only be 'uniform'. Would there be a way to apply a colormap to an axes...

3 years ago | 1 answer | 0

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Answered
Converting typical Matrix / TRC RGB profiles to CIE Lab
The above code works just fine :-) Thank you!

3 years ago | 0

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Question

Coloring axis with gradients?
My humble script is taking shape : Here's my code, for those interested : global sRGBGamut AdobeRGBGamut EpsonGamut P3Gamut ...

3 years ago | 1 answer | 0

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Question

Converting typical Matrix / TRC RGB profiles to CIE Lab
Not 100% clear on the documentation? I want to create a cform that converts from RGB to Lab out of a typical 'Matrix/TRC' profi...

3 years ago | 1 answer | 0

1

answer

Answered
Freeze axis between successive plots?
I removed the following statement : axis equal And that was it? This is the result : The scales are constant, so the studen...

3 years ago | 0

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Question

Freeze axis between successive plots?
My humble script is starting to take shape. The problem occurs when I make one plot active (visible) and the other inactive (inv...

3 years ago | 1 answer | 0

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Question

Turning the visibility inside a function does not work?
I have this simple code : a = lab(:,2); b = lab(:,3); L = lab(:,1); k = boundary(a,b,L); sRGBGamut = trisurf(k,a,b,L,'FaceC...

3 years ago | 0 answers | 0

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