Chore: rename api->camera-management-api and web->management-dashboard-web-app; update compose, ignore, README references
This commit is contained in:
Alireza Vaezi
197
camera-management-api/tests/legacy_tests/test_exposure.py
Normal file
197
camera-management-api/tests/legacy_tests/test_exposure.py
Normal file
@@ -0,0 +1,197 @@
|
||||
#coding=utf-8
|
||||
"""
|
||||
Test script to help find optimal exposure settings for your GigE camera.
|
||||
This script captures a single test image with different exposure settings.
|
||||
"""
|
||||
import os
|
||||
import sys
|
||||
import mvsdk
|
||||
import numpy as np
|
||||
import cv2
|
||||
import platform
|
||||
from datetime import datetime
|
||||
|
||||
# Add the python demo directory to path
|
||||
sys.path.append('./python demo')
|
||||
|
||||
def test_exposure_settings():
|
||||
"""
|
||||
Test different exposure settings to find optimal values
|
||||
"""
|
||||
# Initialize SDK
|
||||
try:
|
||||
mvsdk.CameraSdkInit(1)
|
||||
print("SDK initialized successfully")
|
||||
except Exception as e:
|
||||
print(f"SDK initialization failed: {e}")
|
||||
return False
|
||||
|
||||
# Enumerate cameras
|
||||
DevList = mvsdk.CameraEnumerateDevice()
|
||||
nDev = len(DevList)
|
||||
|
||||
if nDev < 1:
|
||||
print("No camera was found!")
|
||||
return False
|
||||
|
||||
print(f"Found {nDev} camera(s):")
|
||||
for i, DevInfo in enumerate(DevList):
|
||||
print(f" {i}: {DevInfo.GetFriendlyName()} ({DevInfo.GetPortType()})")
|
||||
|
||||
# Use first camera
|
||||
DevInfo = DevList[0]
|
||||
print(f"\nSelected camera: {DevInfo.GetFriendlyName()}")
|
||||
|
||||
# Initialize camera
|
||||
try:
|
||||
hCamera = mvsdk.CameraInit(DevInfo, -1, -1)
|
||||
print("Camera initialized successfully")
|
||||
except mvsdk.CameraException as e:
|
||||
print(f"CameraInit Failed({e.error_code}): {e.message}")
|
||||
return False
|
||||
|
||||
try:
|
||||
# Get camera capabilities
|
||||
cap = mvsdk.CameraGetCapability(hCamera)
|
||||
monoCamera = (cap.sIspCapacity.bMonoSensor != 0)
|
||||
print(f"Camera type: {'Monochrome' if monoCamera else 'Color'}")
|
||||
|
||||
# Get camera ranges
|
||||
try:
|
||||
exp_min, exp_max, exp_step = mvsdk.CameraGetExposureTimeRange(hCamera)
|
||||
print(f"Exposure time range: {exp_min:.1f} - {exp_max:.1f} μs")
|
||||
|
||||
gain_min, gain_max, gain_step = mvsdk.CameraGetAnalogGainXRange(hCamera)
|
||||
print(f"Analog gain range: {gain_min:.2f} - {gain_max:.2f}x")
|
||||
except Exception as e:
|
||||
print(f"Could not get camera ranges: {e}")
|
||||
exp_min, exp_max = 100, 100000
|
||||
gain_min, gain_max = 1.0, 4.0
|
||||
|
||||
# Set output format
|
||||
if monoCamera:
|
||||
mvsdk.CameraSetIspOutFormat(hCamera, mvsdk.CAMERA_MEDIA_TYPE_MONO8)
|
||||
else:
|
||||
mvsdk.CameraSetIspOutFormat(hCamera, mvsdk.CAMERA_MEDIA_TYPE_BGR8)
|
||||
|
||||
# Set camera to continuous capture mode
|
||||
mvsdk.CameraSetTriggerMode(hCamera, 0)
|
||||
mvsdk.CameraSetAeState(hCamera, 0) # Disable auto exposure
|
||||
|
||||
# Start camera
|
||||
mvsdk.CameraPlay(hCamera)
|
||||
|
||||
# Allocate frame buffer
|
||||
FrameBufferSize = cap.sResolutionRange.iWidthMax * cap.sResolutionRange.iHeightMax * (1 if monoCamera else 3)
|
||||
pFrameBuffer = mvsdk.CameraAlignMalloc(FrameBufferSize, 16)
|
||||
|
||||
# Create test directory
|
||||
if not os.path.exists("exposure_tests"):
|
||||
os.makedirs("exposure_tests")
|
||||
|
||||
print("\nTesting different exposure settings...")
|
||||
print("=" * 50)
|
||||
|
||||
# Test different exposure times (in microseconds)
|
||||
exposure_times = [500, 1000, 2000, 5000, 10000, 20000] # 0.5ms to 20ms
|
||||
analog_gains = [1.0] # Start with 1x gain
|
||||
|
||||
test_count = 0
|
||||
for exp_time in exposure_times:
|
||||
for gain in analog_gains:
|
||||
# Clamp values to valid ranges
|
||||
exp_time = max(exp_min, min(exp_max, exp_time))
|
||||
gain = max(gain_min, min(gain_max, gain))
|
||||
|
||||
print(f"\nTest {test_count + 1}: Exposure={exp_time/1000:.1f}ms, Gain={gain:.1f}x")
|
||||
|
||||
# Set camera parameters
|
||||
mvsdk.CameraSetExposureTime(hCamera, exp_time)
|
||||
try:
|
||||
mvsdk.CameraSetAnalogGainX(hCamera, gain)
|
||||
except:
|
||||
pass # Some cameras might not support this
|
||||
|
||||
# Wait a moment for settings to take effect
|
||||
import time
|
||||
time.sleep(0.1)
|
||||
|
||||
# Capture image
|
||||
try:
|
||||
pRawData, FrameHead = mvsdk.CameraGetImageBuffer(hCamera, 2000)
|
||||
mvsdk.CameraImageProcess(hCamera, pRawData, pFrameBuffer, FrameHead)
|
||||
mvsdk.CameraReleaseImageBuffer(hCamera, pRawData)
|
||||
|
||||
# Handle Windows image flip
|
||||
if platform.system() == "Windows":
|
||||
mvsdk.CameraFlipFrameBuffer(pFrameBuffer, FrameHead, 1)
|
||||
|
||||
# Convert to numpy array
|
||||
frame_data = (mvsdk.c_ubyte * FrameHead.uBytes).from_address(pFrameBuffer)
|
||||
frame = np.frombuffer(frame_data, dtype=np.uint8)
|
||||
|
||||
if FrameHead.uiMediaType == mvsdk.CAMERA_MEDIA_TYPE_MONO8:
|
||||
frame = frame.reshape((FrameHead.iHeight, FrameHead.iWidth))
|
||||
else:
|
||||
frame = frame.reshape((FrameHead.iHeight, FrameHead.iWidth, 3))
|
||||
|
||||
# Calculate image statistics
|
||||
mean_brightness = np.mean(frame)
|
||||
max_brightness = np.max(frame)
|
||||
|
||||
# Save image
|
||||
filename = f"exposure_tests/test_{test_count+1:02d}_exp{exp_time/1000:.1f}ms_gain{gain:.1f}x.jpg"
|
||||
cv2.imwrite(filename, frame)
|
||||
|
||||
# Provide feedback
|
||||
status = ""
|
||||
if mean_brightness < 50:
|
||||
status = "TOO DARK"
|
||||
elif mean_brightness > 200:
|
||||
status = "TOO BRIGHT"
|
||||
elif max_brightness >= 255:
|
||||
status = "OVEREXPOSED"
|
||||
else:
|
||||
status = "GOOD"
|
||||
|
||||
print(f" → Saved: {filename}")
|
||||
print(f" → Brightness: mean={mean_brightness:.1f}, max={max_brightness:.1f} [{status}]")
|
||||
|
||||
test_count += 1
|
||||
|
||||
except mvsdk.CameraException as e:
|
||||
print(f" → Failed to capture: {e.message}")
|
||||
|
||||
print(f"\nCompleted {test_count} test captures!")
|
||||
print("Check the 'exposure_tests' directory to see the results.")
|
||||
print("\nRecommendations:")
|
||||
print("- Look for images marked as 'GOOD' - these have optimal exposure")
|
||||
print("- If all images are 'TOO BRIGHT', try lower exposure times or gains")
|
||||
print("- If all images are 'TOO DARK', try higher exposure times or gains")
|
||||
print("- Avoid 'OVEREXPOSED' images as they have clipped highlights")
|
||||
|
||||
# Cleanup
|
||||
mvsdk.CameraAlignFree(pFrameBuffer)
|
||||
|
||||
finally:
|
||||
# Close camera
|
||||
mvsdk.CameraUnInit(hCamera)
|
||||
print("\nCamera closed")
|
||||
|
||||
return True
|
||||
|
||||
if __name__ == "__main__":
|
||||
print("GigE Camera Exposure Test Script")
|
||||
print("=" * 40)
|
||||
print("This script will test different exposure settings and save sample images.")
|
||||
print("Use this to find the optimal settings for your lighting conditions.")
|
||||
print()
|
||||
|
||||
success = test_exposure_settings()
|
||||
|
||||
if success:
|
||||
print("\nTesting completed successfully!")
|
||||
else:
|
||||
print("\nTesting failed!")
|
||||
|
||||
input("Press Enter to exit...")
|
||||
Reference in New Issue
Block a user