ImagePosition

ImagePosition[image]

gives an association of image positions for each identified category of objects in image.

ImagePosition[image,obj]

gives a list of image positions for subimages identified as instances of the specified category.

Details and Options

  • ImagePosition attempts to find instances of an object category present in an image and returns a list of {x,y} positions.
  • Coordinates {x,y} are assumed to be in the standard image coordinate system.
  • Possible forms for category include:
  • "concept"named concept, as used in "Concept" entities
    "word"English word, as used in WordData
    wordspecword sense specification, as used in WordData
    Entity[]any appropriate entity
    category1|category2|any of the categoryi
  • The following options can be given:
  • AcceptanceThresholdAutomaticidentification acceptance threshold
    MaxFeaturesAutomaticmaximum number of subimages to return
    MaxOverlapFractionAutomaticmaximum bounding box overlap
    TargetDevice"CPU"the target device on which to compute
  • ImagePosition uses machine learning, and its training set and methods may change in different versions of the Wolfram Language, yielding different results.
  • ImagePosition may download resources that will be stored in your local object store at $LocalBase, and can be listed using LocalObjects[] and removed using ResourceRemove.

Examples

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Basic Examples  (1)

Find the image positions of birds in an image:

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Scope  (2)

Options  (4)

Applications  (1)

Properties & Relations  (1)

Introduced in 2019
(12.0)