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Questions tagged [digitization]

Digitization is the process of converting information into a digital format.

Digitization is crucial for data processing, storage and transmission because it "allows information of all kinds in all formats to perform with the same efficiency and also intermingled."

The term digitization is often used when diverse forms of information, such as text, sound, image or voice, are converted into a single binary code. Digital information exists as one of two digits, either 0 or 1

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Detecting the locations of circles and crosses in an image

I'm new to OpenCV and was wondering if anybody could direct me to the most suitable algorithm(s) to tackle the challenge of identifying the locations of circles and crosses in images that look like the following . . [ Sometimes there are lines…
learnvst
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Is there a way to automatically recognize the position of a line chart in a photo and to digitize it?

I have the following problem, we are supposed to digitize historical records of tide levels of different cities. The data is in the form of photographs and all of them look something like this: The line chart remains the same over all the years,…
Stefan Renard
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Is there a way to create bins in python instead of listing all the bin numbers (as seen in code below), and maybe without having to use np.digitize?

In my code, I have created 10 bins (specific ranges of bins are listed…
Preston B.
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Generating md5 checksum using Windows Certutil program

I need to generate an md5 hash for a list of tif and jpg images. The hash must be inserted in an XML file with metadata about each image, which will be used for the digitalisation of the document. The use of the md5 hash was not my decision, but a…
Nico
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Digitize a filled contour plot

I have an RGB bitmap. Actually it is the contour plot of some scalar field plotted with the 'jet' colormap. I need to reverse the bitmap and obtain the source data. Is there a ready-to-use ond open-source tool for that? Python module is OK too.
Evgeny P. Kurbatov
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Why are my lines getting automatically simplified in ArcGIS Pro?

I painstakingly am following a complex, windy road, drawing aline, and when I finsh the line, it automaticlaly simplifies to ugly, angular lines that are way off from the original road. how do I stop it from doing this? If it matters, there are also…
Woodsmith.Ryan
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QGIS trace dotted path from xyz tiles layer

I am using QGIS 3.28.3-Firenze and I have added in my project a XYZ tiles layer from a custom url of the form https://xxxxxxxxx//{x}/{-y}.png This layer has specific dotted "paths" (black and white) as the image below: Is there a way to auto trace…
qwertyg
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QGIS 3.10.3 generating lines between point overlapping a line network

I am using QGIS 3.10.3. A customer sent me some points coordinates (start and end). My job is to compare their data to mine. So I need to create some lines between these points than match my line network. I tried to do it manually (creating a line…
GIS Noh
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How to understand 'sampleSphericalDirections'?

As a cv beignner, I read the Data Generation of PIFu code, however, I get troubled in the code segment of sampleSphericalDirections, here is the code: def sampleSphericalDirections(n): xv = np.random.rand(n,n) yv = np.random.rand(n,n) theta =…
2018slgys
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How to map the points of the graph from the coordinates on the image to the actual coordinates?

I am implementing an auto-digitizer using Matlab to extract (x, y) value pairs of a line graph. I have determined the position of the axes and y-axis on the image by specifying the beginning and the end of each axis on the image. I also found the…
Donald Bush
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How do I get the Engauge digitizer to keep the points in the order digitized?

While digitizing points using the Engauge digitizer software, the points become automatically sorted by the value of the horizontal variable. This is fine for functions where there is only one "y" for every "x". But I have curves the have multiple…
JimB
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Is there any way to use np.digitize when I want to define the number of bins?

I have big data where i have a numerical column. I simply want to convert the in a groups. I think pd.np.digitize( df.col, bins = [10, 20, 30] ) could be the solution but I can't define here bins as I have high amount of values. In my case, I want…
s_khan92
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Using ffmpeg on Ubuntu, how can the audio and video from an audio-video USB capture device be recorded?

I have a USB audio-video capture device, something used to digitize video cassettes. I want to record both the video and audio from the device to a video file that has dimensions 720x576 and video codec H.264 and good audio quality. I am able to…
BlandCorporation
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Which is the most suitable way to build a graph digitizer?

I have to build a graph digitizer to make the user have a graph by points from an image. This could be an example of an imported graph What I'd like is that the user graphically defines, at first, the X axis domain (in the picture from 0 to 2000)…
telemaco10399
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Digitize map using .png image and draw a circle with known lat./long. as center by inputing radius value in python

I have a .png map image which contains location of handpumps in given village. there are 70 location value.I want to do following in python (had already done similar thing in matlab previously) - digitize .png image of map(had already done similar…
Pri
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