Could someone review my pipeline string that I’m using in python and opencv with an IMX219 camera? I am attempting to adjust exposure using analog gain, but it doesn’t seem that the gain will affect the actual exposure of the image. When I set gain to 1 1 and 10.625 10.625 (The max value for this sensor) there seems to be a difference in the amount of noise in the image but the exposure is the same.
gst-launch-1.0 nvarguscamerasrc sensor-id=0 awblock=true wbmode=0 exposuretimerange="358733008 358733008" ispdigitalgainrange="1 1" gainrange="1 1" aelock=true ! "video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080, format=(string)NV12, framerate=(fraction)20/1" ! nvvidconv flip-method=2 ! "video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080" ! nvoverlaysink
and
gst-launch-1.0 nvarguscamerasrc sensor-id=0 awblock=true wbmode=0 exposuretimerange="358733008 358733008" ispdigitalgainrange="1 1" gainrange="10.625 10.625" aelock=true ! "video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080, format=(string)NV12, framerate=(fraction)20/1" ! nvvidconv flip-method=2 ! "video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080" ! nvoverlaysink
seem to result in the same exposure, only a different in noise.
Here is the resule of gst-inspect-1.0 nvarguscamerasrc:
Factory Details:
Rank primary (256)
Long-name NvArgusCameraSrc
Klass Video/Capture
Description nVidia ARGUS Camera Source
Author Viranjan Pagar <vpagar@nvidia.com>, Amit Pandya <apandya@nvidia.com>
Plugin Details:
Name nvarguscamerasrc
Description nVidia ARGUS Source Component
Filename /usr/lib/aarch64-linux-gnu/gstreamer-1.0/libgstnvarguscamerasrc.so
Version 1.0.0
License Proprietary
Source module nvarguscamerasrc
Binary package NvARGUSCameraSrc
Origin URL http://nvidia.com/
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstBaseSrc
+----GstNvArgusCameraSrc
Pad Templates:
SRC template: 'src'
Availability: Always
Capabilities:
video/x-raw(memory:NVMM)
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
format: { (string)NV12, (string)P010_10LE }
framerate: [ 0/1, 2147483647/1 ]
Element has no clocking capabilities.
Element has no URI handling capabilities.
Pads:
SRC: 'src'
Pad Template: 'src'
Element Properties:
name : The name of the object
flags: readable, writable
String. Default: "nvarguscamerasrc0"
parent : The parent of the object
flags: readable, writable
Object of type "GstObject"
blocksize : Size in bytes to read per buffer (-1 = default)
flags: readable, writable
Unsigned Integer. Range: 0 - 4294967295 Default: 4096
num-buffers : Number of buffers to output before sending EOS (-1 = unlimited)
flags: readable, writable
Integer. Range: -1 - 2147483647 Default: -1
typefind : Run typefind before negotiating (deprecated, non-functional)
flags: readable, writable, deprecated
Boolean. Default: false
do-timestamp : Apply current stream time to buffers
flags: readable, writable
Boolean. Default: true
silent : Produce verbose output ?
flags: readable, writable
Boolean. Default: true
timeout : timeout to capture in seconds (Either specify timeout or num-buffers, not both)
flags: readable, writable
Unsigned Integer. Range: 0 - 2147483647 Default: 0
wbmode : White balance affects the color temperature of the photo
flags: readable, writable
Enum "GstNvArgusCamWBMode" Default: 1, "auto"
(0): off - GST_NVCAM_WB_MODE_OFF
(1): auto - GST_NVCAM_WB_MODE_AUTO
(2): incandescent - GST_NVCAM_WB_MODE_INCANDESCENT
(3): fluorescent - GST_NVCAM_WB_MODE_FLUORESCENT
(4): warm-fluorescent - GST_NVCAM_WB_MODE_WARM_FLUORESCENT
(5): daylight - GST_NVCAM_WB_MODE_DAYLIGHT
(6): cloudy-daylight - GST_NVCAM_WB_MODE_CLOUDY_DAYLIGHT
(7): twilight - GST_NVCAM_WB_MODE_TWILIGHT
(8): shade - GST_NVCAM_WB_MODE_SHADE
(9): manual - GST_NVCAM_WB_MODE_MANUAL
saturation : Property to adjust saturation value
flags: readable, writable
Float. Range: 0 - 2 Default: 1
sensor-id : Set the id of camera sensor to use. Default 0.
flags: readable, writable
Integer. Range: 0 - 255 Default: 0
sensor-mode : Set the camera sensor mode to use. Default -1 (Select the best match)
flags: readable, writable
Integer. Range: -1 - 255 Default: -1
total-sensor-modes : Query the number of sensor modes available. Default 0
flags: readable
Integer. Range: 0 - 255 Default: 0
exposuretimerange : Property to adjust exposure time range in nanoseconds
Use string with values of Exposure Time Range (low, high)
in that order, to set the property.
eg: exposuretimerange="34000 358733000"
flags: readable, writable
String. Default: null
gainrange : Property to adjust gain range
Use string with values of Gain Time Range (low, high)
in that order, to set the property.
eg: gainrange="1 16"
flags: readable, writable
String. Default: null
ispdigitalgainrange : Property to adjust digital gain range
Use string with values of ISP Digital Gain Range (low, high)
in that order, to set the property.
eg: ispdigitalgainrange="1 8"
flags: readable, writable
String. Default: null
tnr-strength : property to adjust temporal noise reduction strength
flags: readable, writable
Float. Range: -1 - 1 Default: -1
tnr-mode : property to select temporal noise reduction mode
flags: readable, writable
Enum "GstNvArgusCamTNRMode" Default: 1, "NoiseReduction_Fast"
(0): NoiseReduction_Off - GST_NVCAM_NR_OFF
(1): NoiseReduction_Fast - GST_NVCAM_NR_FAST
(2): NoiseReduction_HighQuality - GST_NVCAM_NR_HIGHQUALITY
ee-mode : property to select edge enhnacement mode
flags: readable, writable
Enum "GstNvArgusCamEEMode" Default: 1, "EdgeEnhancement_Fast"
(0): EdgeEnhancement_Off - GST_NVCAM_EE_OFF
(1): EdgeEnhancement_Fast - GST_NVCAM_EE_FAST
(2): EdgeEnhancement_HighQuality - GST_NVCAM_EE_HIGHQUALITY
ee-strength : property to adjust edge enhancement strength
flags: readable, writable
Float. Range: -1 - 1 Default: -1
aeantibanding : property to set the auto exposure antibanding mode
flags: readable, writable
Enum "GstNvArgusCamAeAntiBandingMode" Default: 1, "AeAntibandingMode_Auto"
(0): AeAntibandingMode_Off - GST_NVCAM_AEANTIBANDING_OFF
(1): AeAntibandingMode_Auto - GST_NVCAM_AEANTIBANDING_AUTO
(2): AeAntibandingMode_50HZ - GST_NVCAM_AEANTIBANDING_50HZ
(3): AeAntibandingMode_60HZ - GST_NVCAM_AEANTIBANDING_60HZ
exposurecompensation: property to adjust exposure compensation
flags: readable, writable
Float. Range: -2 - 2 Default: 0
aelock : set or unset the auto exposure lock
flags: readable, writable
Boolean. Default: false
aeregion : Property to set region of interest for auto exposure
with values of ROI coordinates (left, top, right, bottom)
and weight (float number) in that order, to set the property
use for example: aeregion="0 0 256 256 1"
flags: readable, writable
String. Default: null
awblock : set or unset the auto white balance lock
flags: readable, writable
Boolean. Default: false
bufapi-version : set to use new Buffer API
flags: readable, writable
Boolean. Default: false
