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Questions tagged [exposure]

44 questions
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Poisson regression with offset variable in neural network using Python

I have large count data with 65 feature variables, Claims as the outcome variable, and Exposure as an offset variable. I want to implement the Poisson loss function in a neural network using Python. I develop the following codes to work. Is…
F74
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Get EXR image luminance

As far as i know, I think to get an image.exr luminance we have to render the image in different exposure and gather them into one ? Here is my image made in Adobe which have different luminance from 0(left) to 10 (right) in exr…
huangkaiyi
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setExposureModeLocked does not work for iPhone 11 and above

So, I have an application where I am streaming images and need consistent results across all images even when exposed to bright light(NO AUTO ADJUSTMENTS). For this I used a AVFoundation as follows: [device…
Jens Tofte
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Using Android camera2 api, even though all exposure parameters are the same, different devices yield differently exposed images

My code sets all the exposure characteristics. Two issues: When I run the code on a Pixel 3 (Android 10), the resulting image appears nearly 2 stops lighter than the same scene captured on an OnePlus 6T (Android 9.0). Inspection of the resulting…
user1146345
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Halcon - Set image brightness/exposure

I'm trying few things in Halcon for the first time. But couldnt figure out, not even in the documentation, how to set the exposure for the image aquisition... my code so far is this, but my test environment is dark, and would like to brighten up the…
sharkyenergy
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GStreamer Exposure Compensation (Exposure Value)

I have an imaging source which has a bit depth of 12 feeding into GStreamer. The eventual output will have a bit depth of 8. The scene being imaged is very low light. I can take images captured from this source (16-bit TIFFs), and in GIMP I can…
K. S.
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Exposure Mode OpenCV 4.0.1

I have some trouble with Manual Exposure of Camera setting in OpenCV 4.0.1. I`m using Raspberry Pi 3 B+ as a computer with Raspbian Stretch OS and Python 3.x. When I have an older version of OpenCV 3.x.x, the Manual setting of Exposure work…
Peter
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Survival analysis to get DROP OUT rates

Ciao, I have data on student drop-outs and I am aiming to conduct a survival analysis I believe to examine or predict the probability of drop out at a given grade. The challenge however is I want to group grades together so for example (7,8) (9,10)…
bvowe
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objc, save an Image with exposure parameter to album

I am desperately fighting against this issue... Background: I have an app that take 4 images in one shutter with different exposures, which has been set to AVCapturePhotoBracketSettings. I've converted CMSampleBufferRef to UIImage* and save them…
Mengchen Lin
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property exposure(15) not supported by device

#include #include "opencv2/highgui/highgui.hpp" #include "opencv2/imgproc/imgproc.hpp" using namespace cv; using namespace std; int B; int main( int argc, char** argv ) { VideoCapture cap(0); //capture the video from webcam …
Jessie
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Unable to exclude collections when extracting Metabase exposures

I am trying to perform exposure extraction from my dbt models. I am following this example. My exposure file is being generated but I want to exclude some collections from Metabase. This is my current code: dbt-metabase exposures \ …
brenda
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Sensitivity analysis of unmeasured confounding in Natural effect model when the exposure is multicategorical

Can anyone give some reference material that explains how to do a sensitivity analysis of unmeasured confounding between mediator-outcome and exposure-mediator relationships when the exposure is multicategorical(with 4 categories in my case)? I am…
Aria
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android camera YUV response to color

I try too calibrate my YUV conversion with the screen(24 pouces) of my PC. And i foud out that the YUV response is changing. For example if a look at the screen the widows logo,meanly bleu i got the correct bleu YUV conversion. But if i open another…
hterrolle
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Bluetooth Advertisement (Exposure Notification) in Background

I have read several stuff in the internet and understood that its not possible to use bluetooth with two iOS devices in Background. It is only partially possible. If the peripheral is in Background the UUID is no more visible. And if the central is…
HaniMontana
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Performing matched risk set sampling (incidence density sampling) without replacement matching on two variables

I have a dataframe like the example below: ### Packages needed for reproducible example library(lubridate) library(dplyr) ### Create data frame: Person_IDs <- seq(1,1000000,1) Example_DF <- as.data.frame(Person_IDs) ### Sex and age for…
Pontus Hedberg
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