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Camera characterization gives "symetrical results"?
Looks like there was a discrepancy between the RGB data used to train the model and the RGB data used to test the model. It's so...
11 Monate vor | 0
Frage
Camera characterization gives "symetrical results"?
I downloaded the code from : https://www.mathworks.com/matlabcentral/fileexchange/40640-computational-colour-science-using-matl...
11 Monate vor | 1 Antwort | 0
1
AntwortFrage
Scaling XYZ 3D data linearly
I am in the pursuit of "simulating" the readings of a spectrophometer equipped with a polarizing filter. I start with a printed ...
etwa ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Getting screen resolution on Windows 11
Are there other functions I can use to get the monitor resolution on Windows 11? I use this code: set(0, 'units', 'pixels'); % ...
mehr als ein Jahr vor | 1 Antwort | 1
1
AntwortFrage
appDesigner and ButtonDownFn does not work?
Documentation states that any Matlab object can respond to click events provided they meet certain conditions. Capturing Mouse ...
mehr als ein Jahr vor | 0 Antworten | 0
0
AntwortenFrage
How can I show where an image was clicked from a scatter3 plot?
I created a small app using appDesigner: It allows loading an RGB image and displaying a CIE Lab scatter plot in 3D. I attach...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Better "probabilities"?
I created a small script in which I present two random colors to the user. See attached script. As you can see, on the left, ...
mehr als ein Jahr vor | 1 Antwort | 1
1
AntwortFrage
Unable to display uicontrol within a given panel?
I figure I split my figure width in two uipanels, in the hope of having better control over my components, in a script (Soon, I ...
fast 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Need help with Tooltip display?
I have a script that plots CIE Lab values in 3D: Works great. But as you can see, the tooltip displays the XYZ value. Instea...
fast 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Custom RGB color space
I am plottiing the measured Lab colors of a ColorChecker SG chart in 3D as you can see below: To obtain the "gamut surface", ...
fast 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
ColorChecker function does not work?
I am trying to follow the example here: Comparison of Auto White Balance Algorithms - MATLAB & Simulink (mathworks.com) I use ...
fast 2 Jahre vor | 0 Antworten | 0
0
AntwortenNo 'CData' property on bar graph
Does not work for me? I use: data = [1 2 3 4]; figure BarMatrix = [1 2 3 4]; b = bar(BarMatrix,1,'LineStyle','none'); CDa...
fast 2 Jahre vor | 0
Frage
Unable to combine plots?
I created a monster of a script which satisfies my research needs for the moments but I am struggling with the subplots. You wi...
mehr als 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Can Subplots have own colormaps?
I must be missing something obvious.. but I can get each subplots colorbars to plot with its own colormap? Here is my code: RGB...
mehr als 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Extract the "overall colors" of an image to apply another?
I've been meaning to show my students a way to "borrow" the color palette of an image to apply to another? Take the Mona Lisa, ...
mehr als 2 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
How to apply color to histograms?
My goal is to analyze RGB images based on Chroma and Hue. For this purpose, I first convert from RGB to CIE Lab, and then from C...
mehr als 3 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Rearrange matrix terms is a challenge
I am not finding exactly the right parameters to rearrange the terms of a matrix? It starts off as an RGB image I later convert ...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I add "color" to an image?
I'm looking for ways to better understand color mixing theory. Suppose I start of an RGB image? Suppose I want to color the whol...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Is it possible to "move" points in 3D?
I have this scatter3 graph, I'm generating from CIE Lab coordinates : Would it be too far-fetch to be able to select any poin...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Writing ICC profiles capbilities: can we save modified tags or is it limited to saving header only?
I am thinking about "editing" CMYK output profiles with Matlab. As you know, an output profile starts with a series of 'device'...
mehr als 3 Jahre vor | 0 Antworten | 0
0
AntwortenFix out-of-gamut RGB colors
I think I found a solution, alhough it is not elegant... : rawRGB = lab2rgb(Lab,'WhitePoint','d50') TempR = rawRGB(:,1...
mehr als 3 Jahre vor | 0
Frage
Fix out-of-gamut RGB colors
I'm going in circle... I have this code, which converts from Lab to RGB : rawRGB = lab2rgb(Lab,'WhitePoint','d50') Trouble i...
mehr als 3 Jahre vor | 2 Antworten | 0
2
AntwortenWhy are there two different "D50" white points? CIE vs ICC?
Got hold of CIE Publication 15.2:2004 and on Table T3, page 35, D50 is listed as 96.42 100.00 82.51. A fresh search in my stock...
mehr als 3 Jahre vor | 0
Frage
Why are there two different "D50" white points? CIE vs ICC?
I have this code going : wp_D50 = whitepoint('d50') % 0.9642 1.0000 0.8251 wp_D65 = whitepoint('d65') % 0.9505 1.00...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I get rid of custom data tip?
I have this script which adds a custom data tip to my scatter3 graph : function txt = displayCoordinates(~, info) global...
fast 4 Jahre vor | 1 Antwort | 0
1
AntwortSearching through table using compound condition
It worked! Sorry for the newbie question. I'm sure there are far more elegant ways to do search a table for information... Will ...
fast 4 Jahre vor | 0
Frage
Searching through table using compound condition
I would leke to add a Munsell Notation readout capability to my script. Right now, when the student clicks a point in scatter3 g...
fast 4 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Unable to control floating point display?
I have this result : There should be three Lab numbers on the third line but only L and a are showing, with two decimals of p...
fast 4 Jahre vor | 2 Antworten | 0
2
AntwortenHow could I display a "circle at the bottom of the figure? And color it along the way? To show Hue angles?
A final note. This project is far from over. It's getting all kinds of suggestions and usecases (by me). I enclose the code, if...
fast 4 Jahre vor | 0
Frage
Trouble with custom data tip function (event)
I am puzzled? I try to have a line drawn during the call to a custom text data tip function. Here is the "normal" response, whe...
fast 4 Jahre vor | 1 Antwort | 0
