TIS-Stefan
commented
2 years ago Hello
why does it lose most of its settings each time the script stops ?
Because they are software properties. The camera is not that smart, is has only exposure and gain.
But: you can setup your camera with tcam-capture and save the properties as json file in the "info" function. The saved file can be loaded with a Python script like:
# Copyright 2019 The Imaging Source Europe GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import time
import sys
import gi
gi.require_version("Gst", "1.0")
from gi.repository import Gst
def main():
Gst.init(sys.argv) # init gstreamer
# this line sets the gstreamer default logging level
# it can be removed in normal applications
# gstreamer logging can contain verry useful information
# when debugging your application
# see https://gstreamer.freedesktop.org/documentation/tutorials/basic/debugging-tools.html
# for further details
# Gst.debug_set_default_threshold(Gst.DebugLevel.WARNING)
state=""
with open("state2.json","r") as f:
state = f.read()
print(state)
serial = "45219982"
pipeline = Gst.parse_launch("tcambin name=bin "
" ! videoconvert"
" ! ximagesink sync=false")
# retrieve the bin element from the pipeline
camera = pipeline.get_by_name("bin")
# serial is defined, thus make the source open that device
if serial is not None:
camera.set_property("serial", serial)
camera.set_property("tcam-properties-json",state)
pipeline.set_state(Gst.State.PLAYING)
print("Press Ctrl-C to stop.")
# We wait with this thread until a
# KeyboardInterrupt in the form of a Ctrl-C
# arrives. This will cause the pipline
# to be set to state NULL
try:
while True:
time.sleep(1)
except KeyboardInterrupt:
pass
finally:
pipeline.set_state(Gst.State.NULL)
if __name__ == "__main__":
main()That means, only loading the property setup from file. You do not need to handle them directly in your code any more.
Stefan
Max313233
TIS-Kevin
TIS-Edgar
Hi, I just started using TIS cameras in Linux UBUNTU20.04 72BUC02 Python
getting a picture works fine using "VideoCapture(0)" in opencv
but I can not change properties and make them last, using the example 02-set-properties.py the only value I can change and it keeps the changes is ExposureTimer
code: camera.set_tcam_enumeration("ExposureAuto", "Off") camera.set_tcam_enumeration("GainAuto", "Off") camera.set_tcam_integer("Contrast", 1) camera.set_tcam_integer("Sharpness", 2) camera.set_tcam_float("Gamma", 100) camera.set_tcam_float("Gain", 5) camera.set_tcam_float("ExposureTime", 10000)
why does it lose most of its settings each time the script stops ?
Thx 4 Help Max