fast_sam module¶
Segmenting remote sensing images with the Fast Segment Anything Model (FastSAM. https://github.com/opengeos/FastSAM
SamGeo
¶
Bases: FastSAM
Segmenting remote sensing images with the Fast Segment Anything Model (FastSAM).
Source code in samgeo/fast_sam.py
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__init__(model='FastSAM-x.pt', **kwargs)
¶
Initialize the FastSAM algorithm.
Source code in samgeo/fast_sam.py
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box_prompt(bbox=None, bboxes=None, output=None, **kwargs)
¶
Segment the image with the box prompt. Adapted from https://github.com/CASIA-IVA-Lab/FastSAM/blob/main/fastsam/prompt.py#L377
Parameters:
Name | Type | Description | Default |
---|---|---|---|
bbox
|
list
|
The bounding box. Defaults to None. |
None
|
bboxes
|
list
|
A list of bounding boxes. Defaults to None. |
None
|
output
|
str
|
The path to save the output image. Defaults to None. |
None
|
Source code in samgeo/fast_sam.py
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everything_prompt(output=None, **kwargs)
¶
Segment the image with the everything prompt. Adapted from https://github.com/CASIA-IVA-Lab/FastSAM/blob/main/fastsam/prompt.py#L451
Parameters:
Name | Type | Description | Default |
---|---|---|---|
output
|
str
|
The path to save the output image. Defaults to None. |
None
|
Source code in samgeo/fast_sam.py
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fast_show_mask(random_color=False)
¶
Show the mask of the image. Adapted from https://github.com/CASIA-IVA-Lab/FastSAM/blob/main/fastsam/prompt.py#L222
Parameters:
Name | Type | Description | Default |
---|---|---|---|
random_color
|
bool
|
Whether to use random colors for each object. Defaults to False. |
False
|
Returns:
Type | Description |
---|---|
np.ndarray: The mask of the image. |
Source code in samgeo/fast_sam.py
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point_prompt(points, pointlabel, output=None, **kwargs)
¶
Segment the image with the point prompt. Adapted from https://github.com/CASIA-IVA-Lab/FastSAM/blob/main/fastsam/prompt.py#L414
Parameters:
Name | Type | Description | Default |
---|---|---|---|
points
|
list
|
A list of points. |
required |
pointlabel
|
list
|
A list of labels for each point. |
required |
output
|
str
|
The path to save the output image. Defaults to None. |
None
|
Source code in samgeo/fast_sam.py
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raster_to_vector(image, output, simplify_tolerance=None, dst_crs='EPSG:4326', **kwargs)
¶
Save the result to a vector file.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
image
|
str
|
The path to the image file. |
required |
output
|
str
|
The path to the vector file. |
required |
simplify_tolerance
|
float
|
The maximum allowed geometry displacement. The higher this value, the smaller the number of vertices in the resulting geometry. |
None
|
Source code in samgeo/fast_sam.py
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save_masks(output=None, better_quality=True, dtype=None, mask_multiplier=255, **kwargs)
¶
Save the mask of the image. Adapted from https://github.com/CASIA-IVA-Lab/FastSAM/blob/main/fastsam/prompt.py#L222
Returns:
Type | Description |
---|---|
ndarray
|
np.ndarray: The mask of the image. |
Source code in samgeo/fast_sam.py
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set_image(image, device=None, **kwargs)
¶
Set the input image.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
image
|
str
|
The path to the image file or a HTTP URL. |
required |
device
|
str
|
The device to use. Defaults to "cuda" if available, otherwise "cpu". |
None
|
kwargs
|
Additional keyword arguments to pass to the FastSAM model. |
{}
|
Source code in samgeo/fast_sam.py
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show_anns(output=None, **kwargs)
¶
Show the annotations (objects with random color) on the input image.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
figsize
|
tuple
|
The figure size. Defaults to (12, 10). |
required |
axis
|
str
|
Whether to show the axis. Defaults to "off". |
required |
alpha
|
float
|
The alpha value for the annotations. Defaults to 0.35. |
required |
output
|
str
|
The path to the output image. Defaults to None. |
None
|
blend
|
bool
|
Whether to show the input image. Defaults to True. |
required |
Source code in samgeo/fast_sam.py
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text_prompt(text, output=None, **kwargs)
¶
Segment the image with the text prompt. Adapted from https://github.com/CASIA-IVA-Lab/FastSAM/blob/main/fastsam/prompt.py#L439
Parameters:
Name | Type | Description | Default |
---|---|---|---|
text
|
str
|
The text to segment. |
required |
output
|
str
|
The path to save the output image. Defaults to None. |
None
|
Source code in samgeo/fast_sam.py
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