Tagged Questions

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

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1
vote
0answers
69 views

Can not understand the code to plot Fourier Series approximation of the line

I'm reading the CDF file from Making Formulas… for Everything in wolframalpha blog. When I step into In[9] and In[10], I'm fully confused. Who can tell me what does the two functions mean? The ...
3
votes
1answer
65 views

Raster to Image conversion problem

There are 3 ways to convert a Raster into an Image : only 1 works for me with version 10.0.1, and 2 work with version 9 (same computer, OS X 10.9.5) Has anyone the same problem or is it localized to ...
-1
votes
0answers
52 views

Can I get features edge(face outline, mouth, nose, eyes, etc.) after clicking on edge points in an image? [on hold]

EdgeDetect always gives discontinuous feature edges. An algorithm that can get nice feature edges automatically is too complex. If I were to help by manually ...
1
vote
1answer
56 views

Nothing happens when I click the mouse clicked on my graphics

I wrote codes to record list of coordinates when mouse clicked. It is expected that the coordinates should be plotted dynamically. But actually nothing happened. Can anybody help me to find the ...
0
votes
1answer
62 views

Why is my Fourier transformed matrix rotated?

After Fourier transforming and shifting the zero frequency of a matrix, my outcome is rotated by 45 degrees from what it should be. Can anybody spot why? ...
0
votes
0answers
35 views

How to plot morphological stripe near the mouse-clicked position in an image? [duplicate]

I tried to use EdgeDetect and MorphologicalComponents to get the image edge elements. When I clicked on an image, I want the edge element nearby to be highlighted or plotted. Here is my code. Two ...
3
votes
1answer
54 views

How to create a 1D vector by selecting a straight line in a given angle of 2D array

Suppose I have an image created by the code provided below. I want to select a line (1D vector) $ \left(y-y_{0}\right)=n\left(x-x_{0}\right) $ from the output image (2D matrix) by specifying $n$ and ...
0
votes
0answers
25 views

LinkObject::linkd error when reading PDF file

I'm attempting to import a PDF file into the Wolfram Desktop (though I have also used Mathematica 10 with identical results) on a Mac running OS X 10.9.4. The ...
1
vote
1answer
38 views

How to adjust the size of figure automatically with Stylesheet editor

It's known that in LaTex, "\includegraphics[]{}",we can adjust the width or size of the figure by using "width=0.75\textwidth". Can we realize such functionality in Mathematica with editing the ...
2
votes
0answers
51 views

Frame text is cropped while exporting as EPS

I have generated an eps file with using Export["filename.eps", figure, "eps"], but the text on the frame labels and tick numbers are cropped like this: Screenshot ...
5
votes
1answer
116 views

Using Predict on images

I have a dataset of some (grayscale) images (stored as a list in inputImages) varying in size and content (this is example data from Wolfram, so you can run the ...
2
votes
1answer
51 views

Vertical direction in images

Mathematica's relatively new Image structure and related functions are very useful, but it is a great disappointment that they adopted the convention that the first row is at the top of the image. ...
3
votes
2answers
78 views

How to add and export custom metainformation with image

v.10 In the documentation, it shows you can add custom metainformation to an image under Metainformation. However, I would like to export the image with the custom metainformation and be able to ...
11
votes
4answers
400 views

Using an Image as the Fill/Texture (not background) of a Plot (not polygon)

Is it possible to use an image, rather than a color, or ColorFunction, as the filling for a plot? For instance, I want to make a plot using ...
2
votes
1answer
134 views

How to highlight image edge with spline/bezier when mouse moved over?

It is known that EdgeDetect can find image edges in an image. Suppose the image edges consists of sets of lines. Can the detected edge line near the mouse pointer be highlighted as spline/bezier when ...
2
votes
2answers
118 views

Convert imported PDF to an image

I've looked through the forum and have not seen an answer for this. I would like to be able to import a pdf document in which each page contains an QR code. I want to then use the Barcode reader ...
1
vote
0answers
75 views

Import displays DICOM images as black rectangles (Mma v. 10)

My problem concerns Mathematica version 10.0.1.0 with OS X 10.9.4, OS X 10.9.5 and it does not occur in Mathematica version 9.0.1.0 (on the same computer and OS). About 90% of my DICOM images are ...
34
votes
3answers
1k views

Composition à la Mondrian

I would like to paint something like this or,even better, like this I have tried ...
2
votes
3answers
103 views

Force change in aspect ratio of Inset image

I have an image that I want to place in the background of a plot and stretch it to cover the entire plot area. However, the aspect ratio of the image does not match the aspect ratio of the plot, and ...
2
votes
2answers
54 views

How to display movie without controls [duplicate]

I would like to display a sequence of images as a movie within mathematica. I am aware of ListAnimate, but I do not want the various controls included, and there seems to be no way to remove them.
7
votes
2answers
137 views

Export Grayscale Bitmap

I have a grayscale (one channel) image in Mathematica. How can I export it as a grayscale Bitmap? Every single option I tried so far does not have an influence on the Bitmap exported using ...
4
votes
1answer
121 views

Boundaries of graphical objects not displayed correctly

I have encountered two situations where Mathematica 10 is mishandling the outer pixels of plainly simple objects. I input this: ...
5
votes
0answers
90 views

Is Mathematica 10 color managed?

With ColorProfileData[] Mathematica 10 can handle device-dependent color spaces. However, images with embedded color profiles, e.g. sRGB, are rendered and displayed ...
12
votes
3answers
478 views

Apply an image as a texture to text

I have the following equation eq = Sum[x^2, {x, 0, 10}] and an image ...
1
vote
1answer
76 views

GIF file breaking Import

I'm working with a large number of historical image files and am playing around with extracting dominant colours, faces, etc. with Mathematica 10. Occasionally, however, I am running into files that ...
8
votes
4answers
269 views

Why do quote marks appear in output when saved with Save Selection As?

Update #2: This behavior has been confirm across platforms and in multiple versions. Therefore: Is this a bug or a feature? Can I disable this "feature" so that copying a selection of Cell contents ...
1
vote
1answer
78 views

Plot Legends and Frame Ticks in Array Plots

Why do the frame ticks go away when PlotLegends->Automatic is inserted in an Array Plot? For instance, the following code produces an Array Plot with Frame Ticks. ...
0
votes
0answers
48 views

Marking certain detected points on an image [duplicate]

I have an image in which I had to detect bifurcation points of vessels. I manage to do that and now I have an image where these bifurcation points are 1 while all others are zero. What I want to is ...
9
votes
1answer
249 views

How can I extract the outline of bubbles in my image?

I have an image: I tried to extract the outline of the bubbles, but I met with some problems. Firstly I tried the method used in Mathematica documentation for ...
3
votes
0answers
105 views

Bug report: Attempting to Save Selection As… in a magnified Notebook fails with errors

I have found that attempting to Save Selection As... in a magnified Notebook fails with errors. On my system it can be easily reproduced by: opening any documentation page setting Notebook ...
3
votes
2answers
105 views

Can I save a manually cropped Image in Mathematica 10 without hard cropping?

In Mathematica 7 I was accustomed to a certain workflow: Paste an image into a Notebook Select Actual Size from the context menu, if necessary Ctrl-drag the control points on the sides of the frame ...
1
vote
0answers
53 views

How can I modify the interval of the function Image[]?

I think the default interval is [0,1]. when I have all positives I find it easy to rescale but when I included negative values it doesn't give me the results that I expect. for example how can I ...
0
votes
0answers
109 views

How can estimate the PSF function to deblur an image of plate licence of a car

I want to deblur a blurred image of a plate licence of a car. I need to deblured it. I have used the ImageDeconvolve[] function and Sharpen but the problem is still difficult because I need to ...
8
votes
3answers
736 views

256 Shades of Grey

I noticed that the following line, Image[Table[x, {y, 1, 250}, {x, 30/256, 40/256, 0.02/256}], Magnification -> 1] results in the following image: In the ...
3
votes
1answer
124 views

Export high resolution figure causes missing ticks

I understand that Mathematica has a bug when exporting images. The ticks are scaled not correctly when exporting at high resolution. For example: when you do: ...
2
votes
1answer
67 views

Trying to combine an image with a Plot

I've got this picture: The image has a resolution of 2001x2001. The left most pixel has an x-value of -2, and the right most pixel has an x-value of 2. Same goes for the y-values. Now I am trying ...
3
votes
1answer
280 views

Overlay two images

I have a series of endoscopic images taken by two cameras at the same time. A color image: and a fluorescent image indicating cancerous cells I now want to overlay the two images to indicate ...
3
votes
1answer
254 views

Remove borders in a series of images

I have a series of mouse MRI images, here are two How can I automatically remove the metal cage around the mouse to make it look like this: The position of the cage is not always in exactly ...
0
votes
0answers
54 views

Change size of a saved plot or image (post-processing)

I have many plots (that take a long time to run) and each is saved to a variable name. For simplicity, say one was: ...
-2
votes
1answer
48 views

How to Show the “TemperatureMap” using Manipulate? [closed]

How to show the "TemperatureMap" in Manipulate?. ONLY the image, without text "ColorData..." ...
4
votes
1answer
217 views

Partitioning an image based on features

I have an image that has various characters hand drawn in it, like numbers and letters. I'm trying to partition each character into it's own image so I can run it through ...
5
votes
1answer
164 views

Capture an image by non-default device

Guys! I need capture video from certain webcam which isn't $DefaultImagingDevice. As I know there is one legal way: ...
8
votes
3answers
513 views

Line Intensity Profile From Image

I can get line profiles from images using imagej but it would be nice to be able to do this in my mathematica notebooks. I found this http://library.wolfram.com/examples/intensityprofiles/ after ...
7
votes
2answers
275 views

Reconstructing an image from overlapping patches

The Mathematica function ImagePartition can create overlapping sub-images with the pixel offset options {dw, dh}: ...
2
votes
1answer
75 views

How to create .ico file in Mathematica?

How to create .ico file in Mathematica? I mean the favicon images used for web sites. Directly using Export["file.ico", <some graphical expression>] does ...
11
votes
1answer
426 views

Map of Specific US States? (Isolated)

My question here is fairly basic, and I'm sure I'm overlooking something basic. I know about CountryData for creating shapes of entire countries, and it works, to ...
2
votes
2answers
148 views

Set PointSize to pixel size

I have a set of 1million 2D points and I would like to produce an image 200x200 pixels where each point will have the size of a pixel (no more). Additionally each point may repeats several times so I ...
3
votes
3answers
164 views

the different way for a drunken man go back home in determined number of steps

A drunken man walks in a two-dimensional grid.He can walk rigth(1),down(2),left(3),up(4).After determined number of steps,for example,6 steps,he has 400 ways go back home(the number of 1(2) equal to ...
0
votes
2answers
109 views

Import a large no. of image from a folder together to Mathematica and assign a variable to each of the image [duplicate]

I am using Mathematica for the processing of images. For this I have to process a lot of images. Currently, I import one by one of the images to run the simulation. I want to import all the image ...
3
votes
0answers
225 views

Masked Image Registration/Alignment/Correlation

I'm trying to register (align) two circular grayscale images using a boolean mask to prevent them simply being aligned on the fixed circular border. There are also small fixed circular regions in the ...