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

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10
votes
0answers
117 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
567 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
111 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 ...
10
votes
4answers
306 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
263 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
49 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 ...
10
votes
1answer
366 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 ...
6
votes
0answers
265 views

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

Bug introduced in 9.0.1 or earlier and persisting through 10.0.2 or later I have found that attempting to Save Selection As... in a magnified Notebook fails with errors. On my system it can be ...
3
votes
2answers
159 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
64 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
232 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
996 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
550 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
138 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 ...
2
votes
1answer
203 views

Moment central of a binary image

I am implementing the Hu set of invariant moments detailed here Hu set of invariant moments. I implemented the moment Image like this: ...
3
votes
1answer
384 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
302 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 ...
17
votes
3answers
847 views

How to make a pie chart using custom image

Can we make a pie chart using a custom picture? For example, consider this image of one cent coin: I would like to use this image and cut pieces out, depending on data, and also make a clickable ...
5
votes
1answer
243 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
250 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
1k 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
422 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
94 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 ...
2
votes
2answers
190 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
173 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
206 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 ...
4
votes
0answers
396 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 ...
6
votes
2answers
347 views

Band Intensity Quantification

I would like to measure the density of my western blot band by measuring the area under the peak from this plot. More specifically, my image will have several lanes with a pattern of bands in each ...
0
votes
1answer
73 views

How to use ImageMultiply[] over a list of strings?

I'm trying to do the following: ...
6
votes
3answers
967 views

Understanding Bilinear ImageResize

In trying to understand basic image transformations, I have attempted to code my own image resize function that uses bilinear interpolation. I checked my work against Mma's ...
0
votes
1answer
352 views

Calculate the centroid of a group of pixels with the same PixelValuePositions

My question is about how to recognise objects in a image. I would like to recognise objects of the same color. Then I want to calculate the centroid of these objects. I want to apply this calculation ...
5
votes
1answer
180 views

Parallel evaluation of Image and Rasterize problem

The following command: ParallelTable[Image[Graphics[{{Red, Disk[{5, 5}, 4]}}]], {i, 10}] shows a very strange behaviour. It starts a new Mathematica process on ...
8
votes
1answer
334 views

Export an image at 1000 dpi

I'm trying to export an image at 1000 dpi. The author guide of a lot of papers wants this resolution! Then I must to import this image in Word in a small box; let's say 7x4 cm. This is the code that I ...
3
votes
0answers
66 views

Why doesn't ReplaceAll work on Image? [duplicate]

ReplaceAll seems not to reach inside Image, and I don't see why it shouldn't. Here is an example. Create a black and white image ...
0
votes
1answer
349 views

Image processing, masking

My question is about finding a object in a specific part of a image. For example, I use this image: As you can see, you will se two persons walking on the field. I only want to find the second ...
4
votes
0answers
135 views

Problem importing individual frames from QuickTime file

I am having difficulties with a code I am trying to run. Essentially I want to Read in a large .mov video file (60000+frames). ...
0
votes
1answer
279 views

Using an image as a moving object in an animation

I have following animation: ...
4
votes
2answers
427 views

Recognize simple shapes in an image and color them randomly?

I have an image of polygons built from a polar function (see below). I'd like to color each triangle or quadrilateral a random color. Firstly, I'm not sure how to separate the simple shapes. ...
2
votes
1answer
308 views

How to make a big image/dashboard containing various data-graph

I want to make and image/dashborad (to export to PDF) with many VERTICAL bullet graphs gauges. And I canĀ“t make it, in a automatic way. In general, the questions are: QUESTION 1: How to make a ...
2
votes
4answers
318 views

How to set magnification of image to 75%

Right click on an output image, choose magnification. There are 25%, 50%, 100% etc. But how can I set to 75%?
0
votes
1answer
190 views

PixelValue with pixel indices [duplicate]

How Can we use PixelValue with pixel indices?
0
votes
1answer
117 views

To put a plot inside of a plot [duplicate]

I'd like to put a figure of a 2D-plot into a larger 2D-plot (into some white-space), like in the example below: I don't precesely know how It's done, could anyone help me with this one? Is it with ...
9
votes
4answers
693 views

Measure the length and width of the image

I obtained the images from a Magneto Optic Kerr Effect system from which I have to do some calculations. I cannot calculate the desired information from the images. The details are as follows: From ...
4
votes
1answer
149 views

Exporting images in a Mathematica array to a PDF s.t. each image is precisely $n \times m$ millimeter in dimension [duplicate]

I have a number of images in a Mathematica array, and I'd like to export the images to a PDF s.t. each image is precisely scaled to be $n \times m$ millimeters in dimension. The idea is that printing ...
13
votes
1answer
1k views

How to map an image to get an illusion of 3D

I would like to distort or map a given jpg so it looks 3D when viewed from certain angle, as in the following youtube video: http://www.youtube.com/watch?v=IfCCUd8mFtg. The most interesting part of ...
6
votes
1answer
289 views

Custom image as plot marker

Is there a quick and easy way with Graphics to replace the standard data points in a plot with a custom image?
4
votes
2answers
221 views

Upsampling matrix by inserting zeros inbetween elements

I want to essentially take an image with $n \times n$ pixels and expand it into a sparse array, spacing out the pixels by a factor $2$ or $3$. Each pixel in the input image occupies one of the corners ...
4
votes
2answers
330 views

How to determine coordinates of a shape in an image?

I have a pre-processed image, from which I have to get coordinates of some components. There are 7 green components (pigs actually) that I have already isolated from an angry bird screen shot. So ...
8
votes
1answer
396 views

transparency in image used for texture?

Is there a way to set a transparancy channel in a raster image used for a texture in 3d graphics? this creates a raster image with a transparency channel: ...
3
votes
2answers
663 views

video image recognition [closed]

Has anybody experience with video and image recognition? I've made a video of two teams playing soccer. Now I would like to translate each soccer-player to a (x,y) coordinate and follow them during ...