Linked Questions

1
vote
2answers
119 views

Detect and correct sheared squares in image

I have the image I want to detect the plots and warp them into perfect squares. My workflow so far: corners=ImageCorners[img,10]; This returns a lot of corners, ...
0
votes
2answers
135 views

How to read value from a plot

Let's say I have plot. What is the command for getting the specific value at a point that I choose? Exampe: Plot like --I-. command(1) = 0 command(2) = 0, command(3)=1, command(4)=0
1
vote
1answer
176 views

Extracting a Mathematica approximation of a curve from an image

Suppose I have an image like the following: and suppose Mathematica knows the correct scale of the image. Is there a way I could get Mathematica to approximate this with, say, a Bezier curve? ...
1
vote
2answers
119 views

Equation of graph from graph [duplicate]

How would I go about finding the equation of the solid black line exponential/logarithm graph? The two data points are: (x,y) (9,-14) (20,-21)
1
vote
0answers
123 views

Creating a plot from an image of the plot

I have an image of a plot at https://imgur.com/a/h9OWP6p Import["https://i.imgur.com/vNqm0Em.png"] I want to create a plot of it, consistent with the scale in ...
0
votes
0answers
75 views

Detection the coordinates of all points of a curve on an image file [duplicate]

I have a plot of a curve (the black curve without dashes) on an image file.jpg: http://s000.tinyupload.com/index.php?file_id=48857135704766357735 I'd like to detect the coordinates of all point of ...
13
votes
2answers
551 views

Extracting data from analog screen photograph

I'm using an analog profilometer from the 1970s and need a way to digitize the data and the only way is through a photograph. I've searched but all I could find was how to extract data from computer ...
1
vote
0answers
50 views

Recovering data from a plot [duplicate]

Suppose I have an image which I got from a screenshot \ [![enter image description here][1]][1] [1]: https://i.stack.imgur.com/0Iuj2.png \ Nothing else is there. Now I want my x-axis range (0,1) ...
1
vote
1answer
184 views

Extract region analytic expression from an image

I need to extract the bounds of the yellow and green regions in the picture at the end of the post. I need only to reproduce these regions on mathematica. I tried with the algorithm described here ...
1
vote
0answers
49 views

Importing data from Plot [duplicate]

Is it somehow possible to extract the datapoints from a plot imported from an image? i know it is possible to do that from a plot you made in the current session of mathematica, but i'm not sure if ...
2
votes
1answer
147 views

How to insert a plot into a figure with axes coincidence

I have this plot: which made by: ...
3
votes
3answers
4k views

How to do deconvolution in spectrum with some peaks?

For example, I have the next spectrum: I've seen the next question ["How to perform a multi-peak fitting?"][2] but not answer to my question. I want deconvolution the spectrum to obtain three peaks (...
1
vote
1answer
161 views

Data Fitting problem

I'm having this kind of data, and I know what possibly the equation is, i suspect this has a sine equation but the plot not really seems sinusoid. so what possibly the equation is so i can do the ...
5
votes
1answer
184 views

Finding position of text returned with TextRecognize

I am trying to extract data from images (using some of the methods presented in [1524]), and would like to have a way to selectively cover/remove text from axes and legends. ...
4
votes
2answers
1k views

How to copy Coordinates of "Get Coordinates" in Figure?

I am trying to reproduce the answer here about Recovering data points from an image. I click the figure and press "Get Coordinates". I would like to copy the four coordinates by CTRL-C and then paste ...

15 30 50 per page