rahix/openflexure-microscope-server
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Fully generate simulation sample canvas before setting to class attribute

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This commit is contained in:
Julian Stirling 2026-01-13 11:34:49 +00:00
parent 4c557612fb
commit 51d6bdb991
1 changed files with 6 additions and 6 deletions
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12
src/openflexure_microscope_server/things/camera/simulation.py
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@ -253,16 +253,16 @@ class SimulatedCamera(BaseCamera):
self.blank_canvas[:, :, 0] *= BG_COLOR[0]
self.blank_canvas[:, :, 1] *= BG_COLOR[1]
self.blank_canvas[:, :, 2] *= BG_COLOR[2]
self.canvas = self.blank_canvas.copy()
new_canvas = self.blank_canvas.copy()
for blob_x, blob_y, sprite_index in self.blobs:
self.draw_sprite_on_canvas(
self.sprites[int(sprite_index)], int(blob_y), int(blob_x)
new_canvas, self.sprites[int(sprite_index)], int(blob_y), int(blob_x)
)
np.clip(self.canvas, 0, 255, out=self.canvas)
self.canvas = np.clip(new_canvas, 0, 255)
def draw_sprite_on_canvas(
self, sprite: np.ndarray, centre_y: int, centre_x: int
self, canvas: np.ndarray, sprite: np.ndarray, centre_y: int, centre_x: int
) -> None:
"""Place one sprite on canvas at given centre coordinates.
@ -272,7 +272,7 @@ class SimulatedCamera(BaseCamera):
:param centre_y: The y coordinate to place the centre of the sprite.
:param centre_x: The x coordinate to place the centre of the sprite.
"""
canvas_h, canvas_w, _ = self.canvas.shape
canvas_h, canvas_w, _ = canvas.shape
sprite_h, sprite_w = sprite.shape
sprite_f = sprite.astype(float) / 255
@ -288,7 +288,7 @@ class SimulatedCamera(BaseCamera):
bottom = min(centre_y + (sprite_h - sprite_h // 2), canvas_h)
right = min(centre_x + (sprite_w - sprite_w // 2), canvas_w)
self.canvas[top:bottom, left:right] -= sprite_rgb.astype("int16")
canvas[top:bottom, left:right] -= sprite_rgb.astype("int16")
def generate_image(self, pos: tuple[int, int, int]) -> Image.Image:
"""Generate an image with blobs based on supplied coordinates.