Tag for questions about bitmapped graphics, particularly those using the Image function.

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13
votes
1answer
166 views

What governs images resizing in the FrontEnd environment

What is responsible for the middle Row images' size? And why single image row is different? ...
12
votes
4answers
860 views

Reproduce image effect in Mathematica

How do I create the "dotifying" effect below in Mathematica? I have tried to use Rasterize first to get the image pixelated, but how do I get the disc/circle ...
2
votes
1answer
77 views

How to make image3d smaller? Is `ImageResolution` useful?

I want to make the output of Image3D much smaller. For example ...
1
vote
0answers
28 views

Function with many lines that takes image as parameter not returning same result as if I run the same lines of code

Running the exact same lines of code in a function produces just a return of the original image without any points identified, whereas when I run the exact body of the function line by line it works ...
19
votes
3answers
1k views

Detecting X or O in a small image

I am making a robot that plays Tic Tac Toe Currently, I have code that will parse the board and separate it into an array of 9 images, each space on the board. How can I detect if the image ...
5
votes
1answer
95 views

Shadows interfering with image processing

I am currently working on processing a tic tac toe board to have a robot play a human user. As the lighting changed throughout the day, the image became more difficult to process. Is there a way to ...
8
votes
2answers
105 views

Slice a mathematica image into sub images along black straight lines?

I have a tic tac toe board I want to dynamically process in mathematica to have my robot play a user in tic tac toe. In order to determine the users move, I want to slice the board into 9 images, ...
14
votes
1answer
172 views

Grid cuts my images

Bug introduced in V9.0 or earlier and persisting through V10.3.1. pic2 = ImageResize[ ImageCrop@Rasterize@Graphics@Disk[], {Automatic, 40}] ...
1
vote
1answer
64 views

Get an array of coordinates of the edges of an image

Rick Sanchez from Rick and Morty How can I get an array of coordinates of the edge of Rick in order from left to right? I want to make my delta robot draw images. Additionally, I know that it is ...
3
votes
2answers
110 views

How to import 12-bit TIFF image

I have a CMOS camera which records images at 12 bit resolution. The camera software allows to save them as 12-bit TIFs. However, Mathematica cannot import this: ...
2
votes
1answer
103 views

How to use manipulate to draw an image pixel by pixel

I want to draw an image pixel by pixel using Manipulate. My code almost works but it erases the old points each time. ...
0
votes
1answer
56 views

Why does the function Image not yield a proper output?

Can I get the exact reason why the function Image doesn't yield a proper output in the below? Image[TreeForm@{1, 2, 3}] It ...
0
votes
0answers
38 views

How to make black text on white background [duplicate]

I have a Georgian black text on "dirty yellow" paper I want to make pdf, black text on white paper . I try I also try to like this... Can anyone help me? Sorry for my English. Thanks! ...
3
votes
0answers
52 views

How can I import from a usb webcam on the raspberry pi?

I'm trying to set up a raspberry pi as a webcam server and I need to import images into a mathematica notebook on the raspberry pi. I tried using CurrentImage[] just to test it but I got an error just ...
1
vote
0answers
46 views

FindPeaks “expecting an image” [closed]

I am trying to use FindPeaks for a list of data, but when I have tried to use it it returns an error. I went to the help menu for the function to check that everything is in the correct format, and ...
3
votes
1answer
62 views

Rasterize alters the quality of the figure

A quick 3D plot ...
3
votes
2answers
164 views

Filling a rectangle with an image

Say I have some rectangles of different sizes drawn on the screen. How can I fill them all with the same image? Ideally, the image would be resized to completely fill each rectangle. I've been trying ...
3
votes
1answer
81 views

How to prevent an option from being displayed by Options?

Options[image] This gives a list: ...
6
votes
1answer
95 views

Extracting PNG images from AVI movie

I have written the following code to extract all images from an uncompressed AVI movie and to save them as sequential PNGs. ...
0
votes
1answer
36 views

Exporting multiple sizes of the same image

I have generated an image using (for example) out = Plot[x^2, {x, -2, 0}, PlotLegends -> {x^2}] and would like to export two versions of that image, one that ...
18
votes
1answer
326 views

Reconstruct a graph from an image (curved edges and edge crossings)

Actually, I posted a very similar question before this.How to generate a Graph from a picture of a graph Dr. belisarius's answer have answered that question, but I find a limitation in that method: ...
12
votes
1answer
230 views

How to generate a Graph from a picture of a graph?

I have a picture like this I can get this graph's vertexes ...
3
votes
3answers
158 views

Use custom frame ticks on an image

I chose as an example a familiar figure! img = Import["Lena.jpg"]; Now let's confine her inside a frame ...
4
votes
1answer
89 views

How to adjust the parameter of TextureCoordinateScaling

I wanna draw a picture like this This is my current work,First get the texture of picture ...
5
votes
0answers
47 views

How to count proportion of two phase in a electron microscope picture

I have a picture: The sunk area is a phase,and the bulged area in another phase.I want count the proportion of this two area.this is my method.First I get the ...
2
votes
0answers
33 views

Exporting or save graph to pdf, when will the rasterization occur?

For simple graph Plot[Sin[x], {x, 0, 10}] No matter right click save as pdf or export as pdf, the result is vector image. But for ...
1
vote
1answer
43 views

Issue with ImageCrop and Rasterize

This is related to 1. I use the following code: ...
2
votes
0answers
99 views

How to convert an uploaded image to a “dot-to-dot” puzzle? [closed]

I would like to upload an image to Mathematica and have the software place numbered points throughout the image so that it appears as a "dot-to-dot" image puzzle. I would also like to specify exactly ...
0
votes
0answers
28 views
1
vote
1answer
46 views

Edit header information of a DICOM file and export it again

I have some DICOM files and want to edit a part of the Header and export the DICOM files with this edited header. I know how to Import a DICOM files and extract the Header Information, but how to ...
4
votes
3answers
169 views

How to realize a Harmonic Tool like as CorelDraw [duplicate]

I get a rectangle and a circle like following: The Harmonic Tool of CorelDraw can transition the rectangle to circle ...
7
votes
2answers
212 views

How to resample a list of Images

I have a list of picture(Noting the ordering) first: second: third: forth: My target is get the 3D'image,Now I get the mask of it like following(If you use ...
1
vote
0answers
69 views

Detecting and measuring an ellipse in a glaucoma photo? [duplicate]

I've tried the solutions given in How to find a circular object in the image glaucoma? to detect the ellipse, but the detection results are not quite what I wanted. In glaucoma we have a cup to disk ...
9
votes
1answer
238 views

How to patch fingerprint ridges

I get a fingerprint: But as you see,there are some place is discontinuous,such as: The question is how to patch the discontinuous line according its gradient?The only one thing that I can think ...
0
votes
0answers
21 views

How to get an image when having indices of pixels [duplicate]

I am doing a perspective projection of a list of voxel V={v1,v2,v3,...,vn} using the perspective projection matrix 3*4 to get the indices of each pixel pi=(xi,yi). pi=P*vi Once I get the indices, I ...
1
vote
1answer
83 views

Multiple Import and Export of Images

I wrote a program that imports an image and creates three new images, for example "black and white" or "grey scaled". My problem is that i work with around 200 images and it takes a long time to ...
0
votes
1answer
59 views

Exported picture has less MB than imported

I have to duplicate a picture several times – and each time the duplicate shall have another name. I do this with mathematica 10 with the following easy code: ...
2
votes
0answers
84 views

Confocal Microscopy

Is it possible to direcly import Nikon ND2 files (e.g Confocal microscope 2D or 3D stacks files)? Otherwise how can we import TIFFs of 3D stack and process it as a single "entity" so to speak? ...
5
votes
0answers
139 views

How to recreate a certain word cloud

This is my current method: ...
9
votes
1answer
109 views

A bug in Rasterize?

I plot a straight diagonal line and then simply rasterize it. Consider what happens (Mathematica 10.2 on Windows 7 x64): ...
4
votes
2answers
171 views

PixelValues along a straight Line [duplicate]

UPDATE to the question I have reformulated the question in order to make it distinct from the one suggested as a duplicate: "Line Intensity Profile From Image." The key difference is that I'm ...
3
votes
1answer
156 views

Circular crop: extract non rectangular parts of an image

I want to extract a part of an image. For example, let's start with something like the following image: I would like to apply some image processing to get this result: I have tried to ...
0
votes
0answers
41 views
4
votes
1answer
96 views

How to use the ButterworthFilterModel to processing image

In the book of "Digital_Image_Processing_3rd" point out this: the 4.57a,4.57b,4.57c is like follow: So I do it according to the direction to: ...
9
votes
3answers
193 views

How to convert the binarize-picture to a Region

The Region of Mathematica is nice,and is the new conception of version 10.0.I can convenient get ...
16
votes
2answers
978 views

How to automatically remove text from images?

I'd like to remove the text in the center of images automatically. To use Inpaint[], you need a mask, but I don't have one. So really the problem is: How to build ...
4
votes
1answer
69 views

Fill a Circle in an Image

Let's suppose I have something like this (the image resulting from this): ColorNegate[Rasterize[Graphics[Circle[{100, 100}, 50]]]] Now, what I want to do is fill ...
6
votes
0answers
71 views

How to preview a list of images by sliding the mouse?

I'm trying to dynamically scrub over a list of images like in iphoto. Unfortunately, when the mouse moves from one side to the other, it's skipping frames which is confusing: When the mouse runs ...
6
votes
1answer
126 views

Strategy to build efficiently an image using parts of many images

I have about 1000 images of 1000px $\times$ 1000px and a list which contains the coordinates of the pixels to select, for each of the 1000 images. Each pixel is used once, so the final image is a full ...
1
vote
0answers
42 views

How to avoid “Quit[]” to execute notebook multiple times [duplicate]

I am using a program to binarize several images and then adding all the images together using "ImageAdd" to get one image. This image is required for further analysis of the images. The program ...