Adding Dark Frame to Eliminate Hot Pixels
Posted: Sun Aug 19, 2018 1:16 pm
Hi Everyone,
I was using ASI120MC in conjunction with the All Sky Camera provided to capture the Perseid Meteor Shower event last week. I managed to get about 3000 frames during the show and I am intending to make a timelapse using Lightroom. But there are a lot of hot pixels in the frames, I can't even identify the real stars in my images, then I search up on the internet, found out a method called dark frame subtraction, can eliminate hot pixels or noise efficiently by shooting frames with the lens cap on and with the same settings you use to shoot your images previously. So, my question is, is there a tool in Sharpcap that can remove all hot pixels in the 3000 frames using only one dark frame? Or I can do it in Photoshop? But how? Thanks. Any help or advice will be appreciated. Debayer Preview=On
Pan=0
Tilt=0
Output Format=PNG files (*.png)
Binning=1
Capture Area=1280x960
Colour Space=RAW8
Temperature=29
Discard Split Frames=Off
High Speed Mode=On
Turbo USB=56(Auto)
Flip=Vert
Frame Rate Limit=Maximum
Gain=52
Exposure=3.957988
Timestamp Frames=Off
White Bal (B)=100(Auto)
White Bal (R)=50(Auto)
Brightness=0
Auto Exp Max Gain=50
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=100
Mono Bin=Off
I was using ASI120MC in conjunction with the All Sky Camera provided to capture the Perseid Meteor Shower event last week. I managed to get about 3000 frames during the show and I am intending to make a timelapse using Lightroom. But there are a lot of hot pixels in the frames, I can't even identify the real stars in my images, then I search up on the internet, found out a method called dark frame subtraction, can eliminate hot pixels or noise efficiently by shooting frames with the lens cap on and with the same settings you use to shoot your images previously. So, my question is, is there a tool in Sharpcap that can remove all hot pixels in the 3000 frames using only one dark frame? Or I can do it in Photoshop? But how? Thanks. Any help or advice will be appreciated. Debayer Preview=On
Pan=0
Tilt=0
Output Format=PNG files (*.png)
Binning=1
Capture Area=1280x960
Colour Space=RAW8
Temperature=29
Discard Split Frames=Off
High Speed Mode=On
Turbo USB=56(Auto)
Flip=Vert
Frame Rate Limit=Maximum
Gain=52
Exposure=3.957988
Timestamp Frames=Off
White Bal (B)=100(Auto)
White Bal (R)=50(Auto)
Brightness=0
Auto Exp Max Gain=50
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=100
Mono Bin=Off