31 questions linked to/from Recovering data points from an image
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, ...
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
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? ...
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)
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 ...
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 ...
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 ...
50 views

### Recovering data from a plot [duplicate]

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

### How to insert a plot into a figure with axes coincidence

I have this plot: which made by: ...
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?"] but not answer to my question. I want deconvolution the spectrum to obtain three peaks (...
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 ...