Questions tagged [image-processing]
The image-processing tag has no summary.
34 questions
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Processing an image of land and water into a stylized map
First please excuse my English, it's not my first language!
I'm trying to process an existing image to create a game map, to be clear, this is not a procedurally-generated image. However, I would like ...
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When performing bulk operations on DDS images, is there a safe intermediary format I can use for operations with ImageMagick?
I would like to perform bulk operations of a large number of .DDS files (over 100,000) which may appear in any variety of different BCn formats. I would normally use the ImageMagick command line tools ...
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78
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What causes this ugly blending between certain colors, and how do I fix it?
I'm working on a game and while using some debug colors with high contrast, I noticed that the edges blend together in a way that I find unattractive :
At first I thought it was the shader I wrote to ...
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Height gradient generation from height map,using compute shader has weird artifacts
I am trying to generate the height gradient (the slope) for a heightmap of mine using a compute shader in Unity, and the result has weird ringing artifacts and I completely lost what could be wrong. I ...
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458
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How do you determine if a texture is primarily dark or light?
Particularly, how do you implement Color.GetBrightness (?)
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How to apply brightness/contrast adjustment to a texture's pixels?
I'm trying to use a non-shader method to convert a (single-frame) Texture2D to one with different brightness/contrast.
Attempt so far uses: https://stackoverflow.com/posts/15408608/revisions
I'm not ...
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360
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How to generate a correct RGB + Luminance histogram?
I am trying to create a debug tool that would help me visualize an image RGB and luminance histogram.
I have created a compute shader where I gather the histogram data
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341
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Rendering tiles at a larger size for a detailed look
I'm trying to make my 32-bit tiled map become more "zoomed" in. However, I experience an error that I can't resolve. Firstly, I followed this post on how to render the tiles larger.
This is ...
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216
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Bind render result to texture id
I want to save the result screen of the rendering and then apply another shader on that result, the typical way is to read the screen using glReadPixels and then buffer that image to gpu and then ...
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How to distort an image using perlin noise?
I'm trying to generate a 2D map and currently I'm doing so by the use of voronoi diagram. The problem I found is that all biomes have really hard edges and I would like to smooth them out a bit.
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Function to draw an image inside a rectangle
How can I draw an image inside a rectangle?
I am introducing myself in the manipulation of images for games, I have a window and inside there is a rectangle that deforms. I would like to fill the ...
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Text based cards tracker
I wish to build a card tracker that reads in game text and keeps track on the cards that are out.
Like an Overwolf app, but for a card game. I mailed Overwolf and asked what are my options, they ...
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Unity: White outline around seams in my character, make it stop!
so once upon a time I made a really cool character for my game project and he looked great. Then at some unspecific point in time, my character's UV seams got these awful white outlines around them:
I ...
- 455
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Downscaling texture via mipmap [closed]
Copied from Computer Graphics SE.
I am implementing a post-processing effect in my DirectX 11 pet renderer. The post-processing pass is implemented by rendering a full-screen quad covered with texture ...
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How to create a 32 bit red texture byte buffer
I want to make a red texture image buffer. Would anyone help me to make it in right way. I have tried following:
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417
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Find appropriate camera-projector coordinates to project contours of real objects
I am developping a game (unity3d + opencv for image processing) where i detect real-life objects from the webcam on every frame, find their edges and then draw them on the real objects. I need to find ...
- 102
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Alpha Blending older Images
I am working on re-writing an old game, and have faced some issues with the older images that were used, the first thing we done was convert all the old images and set the alpha channel on black ...
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How do I detect a given sprite's bounds automatically using Java?
Background
I have the following png file that contains the player sprite.
As with any png file, the non-colored pixels are ...
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Passing an UAV to a Pixel Shader in DirectX11
I have a compute shader which task is to take an input image and then blur it using a Gaussian filter approach. The input and output for the compute shader looks like this:
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1k
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Applying a face image to a mesh head
I'm playing around with 3D graphics programming and it's only a few weeks I'm into OpenGL and able to render meshes with textures with few basic transformations.
I've a hobby project where I want to ...
- 121
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Any resources for how to read image files [closed]
I'm learning opengl and I'm the kinda guy who likes to write things from scratch and I was searching for how I can read image files data to create my own image importing library to use for textures ...
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SharpDX Texture to Image in C#
I currently have an image processing application that outputs processed images post pixel shaders have been applied. However, using the examples I've found on the internet, the colors are flip to BGRA ...
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Gamemaker: images appear blurred in application
I'm making a practice game (generic space invaders clone) in Gamemaker Studio. However, there appears to be a problem with the images. While they look acceptable in Gamemaker Studio (not amazing, due ...
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can you explain the following java code for image processing? [closed]
here outdata is buffer of size[8*1024],can you tell me the exactly what will happened after execution of above lines??
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Pick a color and then Chop image with that color into 7 easy pieces
I have an image with 8 colors - (ROYGBIV and white) - I want to create 7 images - each has only one of the colors in the resulting image. I can do that fairly easily in GIMP.
Next I need to chop each ...
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Alternative to System.Drawing for breaking an image into separate tiles in Unity
As far as I can tell, System.Drawing namespace is not available in unity. I there an alternative library to load and manipulate or generate images on the fly?
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C++ : Library for creating 3d view picture [closed]
I've got a numerical simulation, where I have as an output 3d matrix of billion elements - the visualisation of data is 2d flat image:
When I was starting I was just outputting 2d data to gnuplot, now ...
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What can I do in Unity3D to optimize the way I'm calculating contrast of a texture2D?
I have this contrast script right now in Unity:
...
- 149
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How can I use a lookup table for brightness and contrast?
Currently, I implemented a rudimentary brightness and contrast algorithm that changes brightness and contrast pixel by pixel. This was super inefficient performance wise and the algorithm looked a bit ...
- 149
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2
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3k
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Signed Distance Fields: How are different colour channels used to improve output of sharp corners?
The naive approach to implementing signed distance field font rendering suffers quality issues where sharp corners get softened (either outward- or inward-facing corners, i.e. convex or concave ...
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Getting normal map of an image
I'm trying to achieve the results in this tutorial: Link
So far, I was be able to do that;
with these;
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GLSL Processed Image to OpenGL
I've tried wording and rewording this question in various forms of search and can't seem to find an answer to it. If I'm wording it wrong and/or just not finding the right information, feel free to ...
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How to vectorize a raster image edges into SVG paths?
I'm having a lot of trouble figuring out how to convert a 2D list of points into an SVG Path representing a political map border. I have completed all parts of a 2D terrain generator, including ...
- 335
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How can I rotate a bitmap without D3D or OpenGL?
I've just figured out on my own how to scale a portion of a bitmap using PutPixel. I would like to know the mathematical theory behind rotating a bitmap on my own, ...
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