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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).

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Ray tracer that handles gradient refractive index?

I would like to find a ray tracing / synthetic imaging program that utilizes gradient refractive indices. I've looked online at a number of ray tracers, but I've yet to find one that specifically handles gradient indices, alongside regular…
AaronJPung
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Encoding an Image to JPEG in Go

I have a struct called SpriteImage which is defined like this: type SpriteImage struct { dimentions image.Point lastImgPosition image.Point sprite *image.NRGBA } In my flow, I first initiate a new such struct: func…
orcaman
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Downsampling of fMRI image with FSL

I have a set of fMRI images. One group has a dimensionality of 90 x 60 x 12 x 350 with voxel dimension 1 x 1 x 1 mm (350 volumes). The other group has a dimensionality of 80 x 35 x 12 x 350 with voxel dimension 0.2 x 0.2 x 0.5 mm. I'm using one of…
machinery
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Printing a WPF BitmapImage

What's the best way to print a BitmapImage? I come from a background in System.Drawing so I was thinking about converting it to a Bitmap and then printing it, but I'm thinking there's probably a better way. Thanks!
James Jones
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Effective way of making negative of image without external dlls

That is the solution to make a negative from a image in C# Windows Forms without any dlls and in a effective, fast way?
Tom Smykowski
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Python Imaging, how to quantize an image to 16bit depth?

I would like to quantize a 24bit image to 16bit color depth using Python Imaging. PIL used to provide a method im.quantize(colors, **options) however this has been deprecated for out = im.convert("P", palette=Image.ADAPTIVE,…
Rich
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WIA 2.0 Duplex property

I am developing an aplication with C# to use the WIA 2.0 library. At the moment I could use most of the features, such as ADF (auto document feeder), filters and more. Now, I need to use the duplexer of my scanner (fujitsu). I'm trying to set the…
Andrey
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3D *.stl surface model convert to 2D image stack?

OK to start with let me be clear, I am not interested in converting an image stack into a 3D model. I have an *.stl file (a triangulated surface mesh) & I would like to slice it back into an image stack. I've had a look at Slic3r & Meshmixer but…
DrBwts
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Best resources to learn about graphics and imaging?

Having spent a bunch of time recently doing 2D work that involves pixel manipulation of bitmaps and blending/compositing, I've run up against the limits of my own understanding with respect to colorspaces, non-RGB color worlds, etc. I'd like to go…
Ben Zotto
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Is there a way to resize an image using GPU?

Is there a way to resize an image using GPU (graphic card) that is consumable through a .NET application? I am looking for an extremely performant way to resize images and have heard that the GPU could do it much quicker than CPU (GDI+ using C#).…
John Egbert
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Detecting blank images (the image expected is a barcode) in c#

I am basically processing bar codes with an open source software. But the tool sometimes fails detecting no bar code at all. So I want to myself check wether the image was really blank or it contains some sort of bar code. My images are produced…
antew
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Pygame and blitting: white on white = gray?

I'm using pygame (1.9.0rc3, though this also happens in 1.8.1) to create a heatmap. To build the heatmap, I use a small, 24-bit 11x11px dot PNG image with a white background and a very low-opacity grey dot that stops exactly at the edges: Dot image…
Ron Eggbertson
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Tool for lossless image compression

Running Google Page Speed on a public site , I saw some suggestions by the tool like the following : Losslessly compressing http://g-ecx.images-amazon.com/images/G/01/electronics/detail-page/Acer-120x120._V137848950_.gi could save 4.8KiB (26%…
Inquisitive
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Find a smaller image within another big one and fast

Anyway to make this thing go faster ? coz right now it's like 6 seconds on the sourceImage the size of 1024x768 and template 50x50 around. This is using AForge, if anyone knows other faster and rather simple ways please submit. The task i'm trying…
Mandah Mr.
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How to save an EXIF format image file in .NET 3.5

I want to save an image in EXIF format using System.Drawing.Image.Save or a similar method in a C# application using .NET framework v3.5. The MSDN documentation lists EXIF as an option for ImageFormat. However, it does not seem to be supported - at…
TMarshall
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