16.32. image_mosaic

The program image_mosaic aligns multiple input images into a single output image. Currently it only supports a horizontal sequence of images such as scanned Corona images. An example of using this tool is in Section 8.24.

Usage:

image_mosaic [options] <images> -o output_file_path

Command-line options for image_mosaic:

--t_orientation <horizontal>

Specify the image layout. Currently only supports horizontal.

--reverse

Mosaic the images in reverse order.

--rotate

After mosaicking, rotate the image by 180 degrees around its center.

--rotate-90

After mosaicking, rotate the image by 90 degrees clockwise around its center.

--rotate-90-ccw

After mosaicking, rotate the image by 90 degrees counter-clockwise around its center.

--use-affine-transform

Solve for full affine transforms between segments instead of a simpler rotate+translate transform.

-o, --output-image <string>

Specify the output file path. Required.

--overlap-width <number-of-pixels (default: 2000)>

The width of the expected overlap region in the images, in pixels.

--blend-radius <number-of-pixels>

The width in pixels over which blending is performed. Default is calculated based on the overlap width.

--band <integer (default: 0)>

Specify a band to use for multi-channel images.

--ot <type (default: Float32)>

Output data type. Supported types: Byte, UInt16, Int16, UInt32, Int32, Float32. If the output type is a kind of integer, values are rounded and then clamped to the limits of that type.

--input-nodata-value <double>

Override the input nodata value.

--output-nodata-value double

Specify the output nodata value.

--ip-per-tile integer

How many interest points to detect in each \(1024^2\) image tile (default: automatic determination).

--output-prefix <string>

If specified, save here the interest point matches used in mosaicking.

--threads <integer (default: 0)>

Select the number of threads to use for each process. If 0, use the value in ~/.vwrc.

--cache-size-mb <integer (default = 1024)>

Set the system cache size, in MB.

--tile-size <integer (default: 256 256)>

Image tile size used for multi-threaded processing.

--no-bigtiff

Tell GDAL to not create bigtiffs.

--tif-compress <None|LZW|Deflate|Packbits (default: LZW)>

TIFF compression method.

-v, --version

Display the version of software.

-h, --help

Display this help message.