Stack Overflow
Stack Overflow

Questions tagged [imaging]

Anything related to digital imaging, i.e. the theory, the technology and the techniques about acquiring, representing, processing and rendering digital images. This is a term with a rather broad meaning: consider using a more specific tag if it applies to your use case (e.g. use [image-processing] tag if the question is specifically about processing and not rendering).

Anything related to digital imaging, i.e. the theory, the technology and the techniques about acquiring, representing, processing and rendering digital images. This is a term with a rather broad meaning: consider using a more specific tag if it applies to your use case (e.g. use tag if the question is specifically about processing but not about rendering).

468 questions
0
votes
1 answer

Cell Counting: Selective; Only count cells positive for all stainings

If I take multiple images in different fluorescent channels (after staining the cells with some antibody/maker), how can I automatically quantitate the fraction of cells positive for each marker? Has anyone done something like this in Python? I can…
user2277052
  • 23
  • 1
  • 7
0
votes
1 answer

ImageJ - Drawing arrows linking Centroids of Two Images using a Plugin

So I'm doing a small project for my job where I'm required to take two images, one of nucleuses and one of golgi bodies and link them up by arrows with the two centroids as the endpoints. I've been wracking my brain for sometime now, and here's the…
Jon Ma
  • 1
  • 1
0
votes
1 answer

rounded corner control

I'm looking for a .net imaging control to use in a generic handler to process images. Right now I'm using OnlineImageOptimizer, which is a great component for resizing on the fly. What I would love to do is take a photo, resize to the right dims,…
John Hoge
  • 396
  • 1
  • 3
  • 13
0
votes
1 answer

PNG size growth when using RenderTargetBitmap and PngBitmapEncoder

I'm using a method to merge some tile images into a single image. But if I apply it to four 30kb- PNG images, the resulting PNG image would be 500K (~4x more than what I expect) This is some part of the code that I'm using (suggested by Cédric…
Hossein Narimani Rad
  • 31,361
  • 18
  • 86
  • 116
0
votes
2 answers

Detect & floodfill ROI using OpenCV

i have a document image (b/w, 300dpi) containing newspaper like formated text (title, paragraph columns etc). - How can i detect paragraphs columns to floodfill them with Black Color? - How can i get distance with of floodfill textcolumns? Is this…
datenwerk
  • 11
  • 1
  • 7
0
votes
1 answer

Image.FromStream() issue C# at the time of image manipulation

I'm working with JPG image type and this line image = Image.FromStream(ms); is giving an error Parameter is not valid. What is wrong with this code? private void button3_Click(object sender, EventArgs e) { Image…
Thomas
  • 33,544
  • 126
  • 357
  • 626
0
votes
1 answer

Write an ICO file to disk having the icon's handle

Let's just say that is have a handle to an icon image in C#. Is there a way, to save the contents as a valid ICO file on disk? I have tried everything but no luck. The first solution i thought was to create a Bitmap object based on the icon handle,…
user969245
  • 83
  • 1
  • 1
  • 8
0
votes
2 answers

Direct access to a single pixel using Python

Is there any way with Python to directly get (only get, no modify) a single pixel (to get its RGB color) from an image (compressed format if possible) without having to load it in RAM nor processing it (to spare the CPU)? More details: My…
gaborous
  • 15,832
  • 10
  • 83
  • 102
0
votes
1 answer

Line detection using PIL

Given an image consisting of black lines (a few pixels wide) on white background, what is a good way to find the coordinates along the the lines, say for every 10th pixel or so? I am considering using PIL for the task, but other python or java-based…
Roar Skullestad
  • 2,427
  • 3
  • 26
  • 35
0
votes
2 answers

Convert 24bit image to 8bit in monotouch?

We have an image processing windows application where we are using lead tools for converting and images from 24/48 bit images to 8 bit images. As an experiment I'm porting the application to iPad using MonoTouch and C#, now the LeadTools components…
Prashant Cholachagudda
  • 13,012
  • 23
  • 97
  • 162
0
votes
1 answer

How Can I Remove Pixel Noise from ofxKinect Video?

I'm looking for some help figuring out how to remove some low quality pixel noise from a video, that I'm obtaining from an xbox kinect via open frameworks. I'm running logic against "moving" parts of an image, to determine what color is moving the…
Bryan
  • 6,682
  • 2
  • 17
  • 21
0
votes
0 answers

How to include python PIL module without installation

I need to distribute some Python software which uses PIL, but to avoid installing PIL on every target machine. i have directory struct: /myscript.py /PIL/_imaging.so /PIL/Image.py /PIL/ImageFont.py /PIL/ImageOps.py etc in myscript.py i…
radistao
  • 14,889
  • 11
  • 66
  • 92
0
votes
2 answers

Objective C unsharp mask filter Xcode

What would be the most efficient way to create an unsharp mask filter in Objective C targeting iOS? Would it be best to implement some open source like ImageMagick or build from scratch. I think the basic formula is generally as follows (please…
OWolf
  • 5,012
  • 15
  • 58
  • 93
0
votes
1 answer

Scanner connected notification

I'm developing a scanning application and I'd like to enable the Scan button only when my/any scanner is available. I tried achieve this with GdPicture but without any success (btw. it's really poor library, don't use it). I also tried to get some…
SOReader
  • 5,697
  • 5
  • 31
  • 53
0
votes
1 answer

Drag image within it's parent

So, I'm using this approach to be able to drag an image: Dragging an image in WPF And works great but the problem is it depends on a canvas but it draws and drag the image outside the canvas. This is the extender I'm using, is it possible to limit…
Erre Efe
  • 15,387
  • 10
  • 45
  • 77
1 2 3
…
31 32