High Dynamic Range (HDR) is a term used for image and video, referring to an extended range than normal 8-bit-per-color channel precision, enabling representation of a wider range of luminance and complete color gamut.
Questions tagged [hdr]
167 questions
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Need help in using HdrHistogram java library
I am using HdrHistogram java library but I am not getting the desired output. Can you please help me understand there is an error in the library or expected value.
In this case I am expecting the output to be 1000000, but actual output is…
user1918858
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OpenGL HDR values are clamped
I'm trying to implement HDR in OpenGL.
Here the way i make the HDR framebuffer:
glGenFramebuffers(1, &framebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, framebuffer);
glGenTextures(1, &fboTex);
glBindTexture(GL_TEXTURE_2D, fboTex);
glTexImage2D(…
CLOYZ
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Loading HDRi maps in Cocos3D
I want to load an HDRi map (similar to Google Maps) in an iPhone application, and then I want to be able to load some 3D characters to play around in the scene.
You can see here an example of what I would like to…
Andrei Marincas
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Shadows around dark places after HDR conversion
I have converted photo of local castle to HDR with Luminance HDR on Linux,
but it made shadows around towers of castle.
I tried dodge & burn tool in gimp, but it does not made smooth edges.. Is there any way, how to easily remove these shadows with…
Jan Jůna
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FAUX HDR opengl ES 2.0 shader algorithm
I'm trying to create a GLSL shader to produce the FAUX HDR effect, also known as FAKE HDR, (not to confuse with normal HDR where 3 images with different exposures are combined).
I need to create it in a single shader algorithm and not multiple…
PerracoLabs
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Android HDR scene mode
I'm trying to implement an app that take photos using HDR mode.
My phone is an Galaxy S3 and in the native camera, I have the option to enable HDR.
However, I'm getting an exception when setting it in the app.
I set the HDR like…
fcberg
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C++, making OpenCV 3.0.0 available with HDR API
I am using OpenCV 2.4.6 on my Mac using XCode IDE. I am trying to create HDR images and I found this tutorial.
When I build it, it doesn't recognize, for example, CalibrateDebevec identifier. The problem is that in the header files of photo.hpp, it…
user2878485
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Libary/method for loading a HDR/high-bittage image and accessing its pixel values?
Short;
I need to get the value of a specific pixel from a supplied high color depth image.
Details:
I am currently using Processing to make a Slit-scanning program.
Essentially, I am using a greyscale image to pick frames from an animation, and…
darkflame
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2 answers
High Dynamic Range (HDR) from exposure bracketing of grayscale images
I have one question about High Dynamic Range (HDR) images. I want to creat a high dynamic range image from exposure bracketing of grayscale images using matlab. Matlab only support creating HDR image from RBG images. I did google search but there is…
The Ton Nguyen
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Trying to implement HDR on Android jellybean
For my project I need to implement HDR feature in my device that has Android Jelly bean on it. From the code I see that when HDR (High Dynamic Range) is selected the application is sending SCENE_MODE_HDR to the HAL layer. I am the developer from…
PCP
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1 answer
Avoid rough edges when doing HDR reconstruction
Given N x-ray images with different exposure doses, I must combine them into a single one which condenses the information from the N source images. If my research is right, this problem falls in the HDRI cathegory.
My first approach is a weighted…
dario_ramos
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How to convert .hdr to .pfm with matlab?
Is there a way (or piece of code) that can convert the images that are in .hdr format to .pfm format?
I have a code that reads .pfm files but i want to make it run with .hdr files.
Converting .hdr files to .pfm on photoshop and reading next…
bliss
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how does HDR worked, how to make HDR effect
I had read a blog Histogram Equalization for Image Enhancement which gives 7 steps to convert normal images to a HDR image (below).
It's said that a C/C++ program for histogram equalization can easily written using the Open Computer Vision Library…
stonexing
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Display .hdr Uint8Array image in browser
In IndexedDB we have hdr images in the format of a Uint8Array. I retrieve these but need to display them in an image tag.
I have tried converting to base64 and setting image src to this with no luck.
`data:image/hdr;base64,${imageData}`
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1 answer
how to wide gamut ,convert from 8bit to 10bit
I know that the video we watched on the tv is compressed.The range
of the gamut will be narrow.I want to know if there is a magical way
can achieve the extending.Dolby claimd the Perceptual
Quantizer(PQ)EOTE .there is two function Eg.the…
zhx
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