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Customize regions grid overlay API (#8668)

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* Customize regions grid overlay

* Update http.py

Fix
This commit is contained in:
tpjanssen 2023-11-19 15:51:54 +01:00 committed by GitHub
parent 934b16723b
commit 8864e33d1c
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2 changed files with 26 additions and 7 deletions
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5
docs/docs/integrations/api.md
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@ -267,6 +267,11 @@ Returns the snapshot image from the specific point in that cameras recordings.
Returns the latest camera image with the regions grid overlaid. Returns the latest camera image with the regions grid overlaid.
| param | Type | Description |
| ------------ | ----- | ------------------------------------------------------------------------------------------ |
| `color` | str | The color of the grid (red,green,blue,black,white). Defaults to "green". |
| `font_scale` | float | Font scale. Can be used to increase font size on high resolution cameras. Defaults to 0.5. |
### `GET /clips/<camera>-<id>.jpg` ### `GET /clips/<camera>-<id>.jpg`
JPG snapshot for the given camera and event id. JPG snapshot for the given camera and event id.

28
frigate/http.py
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@ -755,6 +755,20 @@ def grid_snapshot(camera_name):
500, 500,
) )
color_arg = request.args.get("color", default="", type=str).lower()
draw_font_scale = request.args.get("font_scale", default=0.5, type=float)
if color_arg == "red":
draw_color = (0, 0, 255)
elif color_arg == "blue":
draw_color = (255, 0, 0)
elif color_arg == "black":
draw_color = (0, 0, 0)
elif color_arg == "white":
draw_color = (255, 255, 255)
else:
draw_color = (0, 255, 0)
grid_size = len(grid) grid_size = len(grid)
grid_coef = 1.0 / grid_size grid_coef = 1.0 / grid_size
width = detect.width width = detect.width
@ -775,7 +789,7 @@ def grid_snapshot(camera_name):
int((x + 1) * grid_coef * width), int((x + 1) * grid_coef * width),
int((y + 1) * grid_coef * height), int((y + 1) * grid_coef * height),
), ),
(0, 255, 0), draw_color,
2, 2,
) )
cv2.putText( cv2.putText(
@ -786,8 +800,8 @@ def grid_snapshot(camera_name):
int((y * grid_coef + 0.02) * height), int((y * grid_coef + 0.02) * height),
), ),
cv2.FONT_HERSHEY_SIMPLEX, cv2.FONT_HERSHEY_SIMPLEX,
fontScale=0.5, fontScale=draw_font_scale,
color=(0, 255, 0), color=draw_color,
thickness=2, thickness=2,
) )
cv2.putText( cv2.putText(
@ -798,8 +812,8 @@ def grid_snapshot(camera_name):
int((y * grid_coef + 0.05) * height), int((y * grid_coef + 0.05) * height),
), ),
cv2.FONT_HERSHEY_SIMPLEX, cv2.FONT_HERSHEY_SIMPLEX,
fontScale=0.5, fontScale=draw_font_scale,
color=(0, 255, 0), color=draw_color,
thickness=2, thickness=2,
) )
cv2.putText( cv2.putText(
@ -810,8 +824,8 @@ def grid_snapshot(camera_name):
int((y * grid_coef + 0.08) * height), int((y * grid_coef + 0.08) * height),
), ),
cv2.FONT_HERSHEY_SIMPLEX, cv2.FONT_HERSHEY_SIMPLEX,
fontScale=0.5, fontScale=draw_font_scale,
color=(0, 255, 0), color=draw_color,
thickness=2, thickness=2,
) )