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FindImageShapes

Updatedshow changeshide changes[Experimental]

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FindImageShapes[image,"model"]

obtains graphic primitives of shapes in an image.

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FindImageShapes[video,…]

finds shapes in frames of video.

Details

  • FindImageShapes attempts to find shapes such as lines, circles and ellipses in an image.
  • Possible "model" specifications include:
  • "Line"a list of InfiniteLine objects
    "LineSegment"a list of Line objects
    "Circle"a list of Circle objects
    "Ellipse"a list of transformed Circle objects
    {model1,model2,…}an association of shapes grouped by each modeli
  • FindImageShapes expects an image in which the shapes are highlighted as bright pixels over dark backgrounds.
  • Highlight contours such as lines and circles using EdgeDetect, RidgeFilter, GradientFilter and more.

Examples

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Basic Examples  (1)Summary of the most common use cases

Find and highlight largest ellipses in an image:

In[1]:=1
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https://wolfram.com/xid/0c0pqfdplbuz4-uktjyc
In[2]:=2
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https://wolfram.com/xid/0c0pqfdplbuz4-dvpqur

Highlight two larger ellipses:

In[3]:=3
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https://wolfram.com/xid/0c0pqfdplbuz4-n2rw96
Out[3]=3

Scope  (2)Survey of the scope of standard use cases

Detect and visualize straight lines in an image:

In[1]:=1
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https://wolfram.com/xid/0c0pqfdplbuz4-3ifp1j
In[6]:=6
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https://wolfram.com/xid/0c0pqfdplbuz4-4af1vy
Out[6]=6
In[9]:=9
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https://wolfram.com/xid/0c0pqfdplbuz4-lzd31o
In[10]:=10
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https://wolfram.com/xid/0c0pqfdplbuz4-msstk8
Out[10]=10

Find and highlight line segments:

In[11]:=11
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https://wolfram.com/xid/0c0pqfdplbuz4-hflgwh
In[12]:=12
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https://wolfram.com/xid/0c0pqfdplbuz4-pyqac6
Out[12]=12

Detect and visualize ellipses:

In[1]:=1
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https://wolfram.com/xid/0c0pqfdplbuz4-u91b5h
In[2]:=2
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https://wolfram.com/xid/0c0pqfdplbuz4-vh74ro
Out[2]=2
In[3]:=3
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https://wolfram.com/xid/0c0pqfdplbuz4-4xgfmo
In[4]:=4
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https://wolfram.com/xid/0c0pqfdplbuz4-7qs426
Out[4]=4

Applications  (1)Sample problems that can be solved with this function

Detect and visualize the iris:

In[1]:=1
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https://wolfram.com/xid/0c0pqfdplbuz4-iqlm3u

Highlight image edges:

In[2]:=2
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https://wolfram.com/xid/0c0pqfdplbuz4-513cu2
Out[2]=2

Find and highlight the largest detected circle:

In[3]:=3
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https://wolfram.com/xid/0c0pqfdplbuz4-6muh4f
Out[3]=3
In[4]:=4
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https://wolfram.com/xid/0c0pqfdplbuz4-2v6ob8
Out[4]=4
Wolfram Research (2023), FindImageShapes, Wolfram Language function, https://reference.wolfram.com/language/ref/FindImageShapes.html (updated 2025).
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Wolfram Research (2023), FindImageShapes, Wolfram Language function, https://reference.wolfram.com/language/ref/FindImageShapes.html (updated 2025).

Text

Wolfram Research (2023), FindImageShapes, Wolfram Language function, https://reference.wolfram.com/language/ref/FindImageShapes.html (updated 2025).

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Wolfram Research (2023), FindImageShapes, Wolfram Language function, https://reference.wolfram.com/language/ref/FindImageShapes.html (updated 2025).

CMS

Wolfram Language. 2023. "FindImageShapes." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2025. https://reference.wolfram.com/language/ref/FindImageShapes.html.

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Wolfram Language. 2023. "FindImageShapes." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2025. https://reference.wolfram.com/language/ref/FindImageShapes.html.

APA

Wolfram Language. (2023). FindImageShapes. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FindImageShapes.html

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Wolfram Language. (2023). FindImageShapes. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FindImageShapes.html

BibTeX

@misc{reference.wolfram_2025_findimageshapes, author="Wolfram Research", title="{FindImageShapes}", year="2025", howpublished="\url{https://reference.wolfram.com/language/ref/FindImageShapes.html}", note=[Accessed: 30-May-2025 ]}

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@misc{reference.wolfram_2025_findimageshapes, author="Wolfram Research", title="{FindImageShapes}", year="2025", howpublished="\url{https://reference.wolfram.com/language/ref/FindImageShapes.html}", note=[Accessed: 30-May-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_findimageshapes, organization={Wolfram Research}, title={FindImageShapes}, year={2025}, url={https://reference.wolfram.com/language/ref/FindImageShapes.html}, note=[Accessed: 30-May-2025 ]}

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@online{reference.wolfram_2025_findimageshapes, organization={Wolfram Research}, title={FindImageShapes}, year={2025}, url={https://reference.wolfram.com/language/ref/FindImageShapes.html}, note=[Accessed: 30-May-2025 ]}