ee.Algorithms.HoughTransform
Applies the Hough transform to an image. For every input band, outputs a band where lines are detected by thresholding the Hough transform with a value of lineThreshold. The output band is named [input]_lines, where [input] is the name of the original band. The defaults provided for the parameters are intended as a starting point for use with UINT8 images.
| Usage | Returns |
|---|
ee.Algorithms.HoughTransform(image, gridSize, inputThreshold, lineThreshold, smooth) | Image |
| Argument | Type | Details |
|---|
image | Image | The image to which to apply the transform. |
gridSize | Integer, default: 256 | The size of the grid over which to perform the computation. |
inputThreshold | Float, default: 64 | Value threshold for input image. Pixels equal to or above this value are considered active. |
lineThreshold | Float, default: 72 | Threshold for line detection. Values equal to or above this threshold on the Hough transform are considered to be detected lines. |
smooth | Boolean, default: true | Whether to smooth the Hough transform before line detection. |
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["Detects lines in an image by applying the Hough transform and thresholding the results."],["Outputs a new band for each input band, highlighting detected lines, named \"[input]_lines\"."],["Customizable parameters include grid size, input and line thresholds, and smoothing for the Hough transform."],["Default parameter values are optimized for 8-bit unsigned integer images."],["Users can adjust these parameters to fine-tune line detection for their specific images and use cases."]]],["The Hough transform detects lines in an image. It takes an image as input and outputs a new image with detected lines for each band, named `[input]_lines`. Key actions include thresholding the input image based on `inputThreshold` to identify active pixels and then thresholding the Hough transform output with `lineThreshold` to detect lines. `gridSize` controls the computation grid, and `smooth` enables smoothing before line detection. Defaults are provided for UINT8 images.\n"]]