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

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2
votes
2answers
127 views

Lossless TIFF or PNG export

I'd like to export an output from MatrixPlot[], however, the output file size seems to depend on my specification of the ImageSize -> {..., ...}. How might I export a TIFF with all of the data in the ...
-2
votes
1answer
33 views

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

How to show the "TemperatureMap" in Manipulate?. ONLY the image, without text "ColorData..." ...
3
votes
1answer
154 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 ...
6
votes
3answers
255 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 ...
-2
votes
0answers
49 views

Converting octave matrix function in Mathematica

I'm trying to solve a problem: I need to translate an octave code in mathematica but I'm struggling with those lines. ...
5
votes
1answer
86 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: ...
3
votes
2answers
118 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 ...
6
votes
2answers
187 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
56 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 ...
6
votes
1answer
175 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
113 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
148 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
65 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 ...
2
votes
0answers
104 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 ...
4
votes
2answers
203 views

Mathematica averaging a big list of large images

I have a list of several hundred images, and I want to average the list to get a single image. Each image is 12bit TIFF with 2048*2048 pixels, and I am using the following to do the job: ...
0
votes
1answer
49 views
4
votes
1answer
70 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 ...
5
votes
3answers
200 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 ...
8
votes
1answer
256 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 ...
2
votes
4answers
213 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%?
3
votes
0answers
60 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
142 views

How to read image files in Analyze 7.5 format?

I am using GATE/Geant4 for simulating photon beams interacting with matter. For 3D dose distributions, GATE outputs the data into an Analyze 7.5 format [1]. I was wondering whether there exists a ...
0
votes
1answer
126 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 ...
3
votes
0answers
57 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). ...
1
vote
1answer
156 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 making it, in a automatic way. In general, the question is QUESTION 1.- how to make any ...
3
votes
1answer
123 views

Exporting large png results in completely black image

When trying to export an Image as PNG the resulting file is a completely black image. This happens only for certain images I have not been able to determine exactly ...
0
votes
1answer
133 views

PixelValue with pixel indices [duplicate]

How Can we use PixelValue with pixel indices?
0
votes
1answer
69 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 ...
16
votes
1answer
644 views

Slow import of multigigabyte TIF image stacks

Update 6: After contacting Wolfram Technical Support, I was advised that the frame-to-frame import timing variability can be eliminated by reading in the frame stack from frame to frame with the ...
2
votes
0answers
206 views

Understanding “IntensityData” coordinates

Update - Playing around a bit, is it true that we need to process the list of "IntensityData" values $r$ as follows: r = Partition[r,k]; r = Transpose@r; And ...
9
votes
4answers
348 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 ...
2
votes
1answer
99 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 ...
6
votes
1answer
136 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?
21
votes
7answers
2k views

Embed Code Into Image

I often export images(plots, matrix, arrays, etc..) from mathematica which I end up putting in word documents or uploading to the web. The problem is that I often lose the original code and I am left ...
4
votes
0answers
145 views

Single image import from stack via FTP connection

Background I would like to create a CDF document that is embedded on a webpage. The CDF will contain some image display ...
4
votes
2answers
218 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 ...
5
votes
1answer
147 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: ...
2
votes
2answers
273 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 ...
2
votes
1answer
152 views

add a scale bar to a microscopy image?

Is there any way to add scale bar to a image for example. I just need to add a bar and a text on top of it to all my images without having to rewrite ...
0
votes
1answer
79 views
5
votes
1answer
152 views

measure minimum distance of dots from edge

I want to measure minimal distance of small dots from the edge of an image: Image of bright dots: Edge image ImageAdd looks like following:
23
votes
3answers
2k views

How to find circular objects in an image?

How could I use morphological processing to find circular objects in an image? More specifically, I need to detect road signs. I need to get the "80 speed limit" sign from this image:
1
vote
1answer
116 views

Interface C# STAThread

How do I convert a .NET STAThread into .NET/Link Mathematica code? Alternatively what would be the easiest way to compile and run the program below from within mathemaitca? ...
2
votes
1answer
246 views

Measure relative lengths of rectangular objects

I'm working on a method for measuring the relative lengths of the objects, with the intention of showing that the objects are longer in the center of the image that at the top/bottom. The image is ...
3
votes
2answers
101 views

Cannot change ImageResolution after applying ImagePad

I want to export high-resolution images of a plot I'm making. The trouble is, the plot has a lot of extra white space around it which I get rid of via ImagePad (I ...
11
votes
2answers
492 views

How to improve the accuracy of this Monte Carlo simulation

A friend of mine went on an interview and he was asked to calculate the angle between the hour hand and minute hand of an analog clock when the time was 3:15. Arguably, this is a trivial problem that ...
11
votes
1answer
337 views

Ellipse counting from image

I have hundreds of images similar to this image: I'm looking to count the number of ellipses as well as their major and minor diameters. The ellipses are touching, hence, ...
1
vote
1answer
285 views

Making a screen icon by Mathematica

Is it possible to make within Mathematica an image file to be used as a screen icon? Could you kindly give an example?
6
votes
2answers
443 views

Band-pass filter an image

Ok so i have some HR-TEM images. In this technique fringes appear whereever a crystalline structure is present. This fringes are separated by a certain distance depending on the material, this is our ...
6
votes
2answers
161 views

Get information about a stack of images, without plotting it

A very long time ago I used Mathematica for a few months and found it very intuitive. Now for my work I use MatLab. I was just trying some stuff out with Mathematica again and there is something I ...