update to 1.3

CHANGELOG.md

@@ -1,9 +1,24 @@
 # CHANGELOG
 
+# v1.3.0
+
+Fourth stable release of the Python language bindings for the Seek Thermal SDK 4.X.
+
+Released on 06/06/2023.
+
+Highlights
+* New APIs to wrap Pipeline APIs added to the C SDK (Seek Vision, Legacy, Lite)
+* Adjust API to wrap Linear AGC Min & Max APIs modified in the C SDK
+* New API to wrap the Sharpening Filter added to the C SDK
+* New API to wrap the HistEQ ROI APIs added to the C SDK
+* New example added which includes Video Recording
+
 ## v1.2.0
 
 Third stable release of the Python language bindings for the Seek Thermal SDK 4.X.
 
+Released on 07/06/2022
+
 Highlights
 * New APIs to wrap AGC APIs added to the C SDK (HistEQ, Linear)
 * New APIs to wrap frame locking APIs added to the C SDK

examples/seekcamera-opencv_record.py

@@ -0,0 +1,250 @@
+#!/usr/bin/env python3
+# Copyright 2021 Seek Thermal Inc.
+#
+# Original author: Michael S. Mead <mmead@thermal.com>
+#
+# 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
+#
+#      https://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.
+
+from threading import Condition
+
+import cv2
+import numpy
+import PIL.Image
+import os
+import glob
+
+from PIL import Image, ImageFont, ImageDraw
+
+from seekcamera import (
+    SeekCameraIOType,
+    SeekCameraColorPalette,
+    SeekCameraManager,
+    SeekCameraManagerEvent,
+    SeekCameraFrameFormat,
+    SeekCameraShutterMode,
+    SeekCamera,
+    SeekFrame,
+)
+
+
+class Renderer:
+    """Contains camera and image data required to render images to the screen."""
+
+    def __init__(self):
+        self.busy = False
+        self.frame = SeekFrame()
+        self.camera = SeekCamera()
+        self.frame_condition = Condition()
+        self.first_frame = True
+
+
+def on_frame(_camera, camera_frame, renderer):
+    """Async callback fired whenever a new frame is available.
+
+    Parameters
+    ----------
+    _camera: SeekCamera
+        Reference to the camera for which the new frame is available.
+    camera_frame: SeekCameraFrame
+        Reference to the class encapsulating the new frame (potentially
+        in multiple formats).
+    renderer: Renderer
+        User defined data passed to the callback. This can be anything
+        but in this case it is a reference to the renderer object.
+    """
+
+    # Acquire the condition variable and notify the main thread
+    # that a new frame is ready to render. This is required since
+    # all rendering done by OpenCV needs to happen on the main thread.
+    with renderer.frame_condition:
+        renderer.frame = camera_frame.color_argb8888
+        renderer.frame_condition.notify()
+
+
+def on_event(camera, event_type, event_status, renderer):
+    """Async callback fired whenever a camera event occurs.
+
+    Parameters
+    ----------
+    camera: SeekCamera
+        Reference to the camera on which an event occurred.
+    event_type: SeekCameraManagerEvent
+        Enumerated type indicating the type of event that occurred.
+    event_status: Optional[SeekCameraError]
+        Optional exception type. It will be a non-None derived instance of
+        SeekCameraError if the event_type is SeekCameraManagerEvent.ERROR.
+    renderer: Renderer
+        User defined data passed to the callback. This can be anything
+        but in this case it is a reference to the Renderer object.
+    """
+    print("{}: {}".format(str(event_type), camera.chipid))
+
+    if event_type == SeekCameraManagerEvent.CONNECT:
+        if renderer.busy:
+            return
+
+        # Claim the renderer.
+        # This is required in case of multiple cameras.
+        renderer.busy = True
+        renderer.camera = camera
+
+        # Indicate the first frame has not come in yet.
+        # This is required to properly resize the rendering window.
+        renderer.first_frame = True
+
+        # Set a custom color palette.
+        # Other options can set in a similar fashion.
+        camera.color_palette = SeekCameraColorPalette.TYRIAN
+
+        # Start imaging and provide a custom callback to be called
+        # every time a new frame is received.
+        camera.register_frame_available_callback(on_frame, renderer)
+        camera.capture_session_start(SeekCameraFrameFormat.COLOR_ARGB8888)
+
+    elif event_type == SeekCameraManagerEvent.DISCONNECT:
+        # Check that the camera disconnecting is one actually associated with
+        # the renderer. This is required in case of multiple cameras.
+        if renderer.camera == camera:
+            # Stop imaging and reset all the renderer state.
+            camera.capture_session_stop()
+            renderer.camera = None
+            renderer.frame = None
+            renderer.busy = False
+
+    elif event_type == SeekCameraManagerEvent.ERROR:
+        print("{}: {}".format(str(event_status), camera.chipid))
+
+    elif event_type == SeekCameraManagerEvent.READY_TO_PAIR:
+        return
+
+def bgra2rgb( bgra ):
+    row, col, ch = bgra.shape
+
+    assert ch == 4, 'ARGB image has 4 channels.'
+
+    rgb = numpy.zeros( (row, col, 3), dtype='uint8' )
+    # convert to rgb expected to generate the jpeg image
+    rgb[:,:,0] = bgra[:,:,2]
+    rgb[:,:,1] = bgra[:,:,1]
+    rgb[:,:,2] = bgra[:,:,0]
+
+    return rgb
+
+def main():
+    window_name = "Seek Thermal - Python OpenCV Sample"
+    cv2.namedWindow(window_name, cv2.WINDOW_NORMAL)
+    fileName = "image"
+    counter  = 100000
+    capture  = False
+    record   = False
+    ts_first = 0
+    ts_last  = 0
+    frame_count = 0
+
+    from PIL import Image
+    from pathlib import Path
+    for f in glob.glob(fileName + '*.jpg'):
+        os.remove(f)
+
+    print("\nuser controls:")
+    print("c:    capture")
+    print("r:    record")
+    print("q:    quit")
+
+    # Create a context structure responsible for managing all connected USB cameras.
+    # Cameras with other IO types can be managed by using a bitwise or of the
+    # SeekCameraIOType enum cases.
+    with SeekCameraManager(SeekCameraIOType.USB) as manager:
+        # Start listening for events.
+        renderer = Renderer()
+        manager.register_event_callback(on_event, renderer)
+
+        while True:
+            # Wait a maximum of 150ms for each frame to be received.
+            # A condition variable is used to synchronize the access to the renderer;
+            # it will be notified by the user defined frame available callback thread.
+            with renderer.frame_condition:
+                if renderer.frame_condition.wait(150.0 / 1000.0):
+                    img = renderer.frame.data
+
+                    # Resize the rendering window.
+                    if renderer.first_frame:
+                        (height, width, _) = img.shape
+                        cv2.resizeWindow(window_name, width * 2, height * 2)
+                        renderer.first_frame = False
+
+                    # Render the image to the window.
+                    cv2.imshow(window_name, img)
+
+                    # if capture or recording, convert the frame image
+                    # to RGB and generate the file.
+                    # Currently counter is a big number to allow easy ordering
+                    # of frames when recording.
+                    if capture or record:
+                        rgbimg = bgra2rgb(img)
+                        frame_count += 1
+                        im = Image.fromarray(rgbimg).convert('RGB')
+                        jpgName = Path('.', fileName + str(counter)).with_suffix('.jpg')
+                        im.save(jpgName)
+                        counter += 1
+                        capture = False
+                        if record:                            
+                            ts_last = renderer.frame.header.timestamp_utc_ns
+                            if ts_first == 0:
+                                ts_first = renderer.frame.header.timestamp_utc_ns                        
+            # Process key events.
+            key = cv2.waitKey(1)
+            if key == ord("q"):
+                break
+
+            if key == ord("c"):
+                capture = True
+
+            if key == ord("r"):
+                if record == False:
+                    record = True  
+                    renderer.camera.shutter_mode = SeekCameraShutterMode.MANUAL
+                    print("\nRecording! Press 'r' to stop recording")
+                    print("Note: shutter is disabled while recording...so keep the videos relatively short")
+                else:
+                    # Stop the recording and squish all the jpeg files together
+                    # and generate the .avi file.
+                    record = False
+                    renderer.camera.shutter_mode = SeekCameraShutterMode.AUTO
+
+                    time_s = (ts_last - ts_first)/1000000000                    
+
+                    print("\nRecording stopped and video is in myVideo.avi")
+                    img_array = []
+                    for filename in glob.glob('image*.jpg'):
+                        img = cv2.imread(filename)
+                        height, width, layers = img.shape
+                        size = (width,height)
+                        img_array.append(img)                        
+                    out = cv2.VideoWriter('myVideo.avi', cv2.VideoWriter_fourcc(*'DIVX'), frame_count/time_s, size)
+
+                    frame_count = ts_first = ts_last = 0
+
+                    for i in range(len(img_array)):
+                        out.write(img_array[i])
+                    out.release()
+
+            # Check if the window has been closed manually.
+            if not cv2.getWindowProperty(window_name, cv2.WND_PROP_VISIBLE):
+                break
+
+    cv2.destroyWindow(window_name)
+
+
+if __name__ == "__main__":
+    main()

seekcamera/__init__.py

@@ -21,6 +21,7 @@
     SeekCameraAppResourcesRegion,
     SeekCameraColorPalette,
     SeekCameraColorPaletteData,
+    SeekCameraPipelineMode,
     SeekCameraAGCMode,
     SeekCameraLinearAGCLockMode,
     SeekCameraShutterMode,