Read and write blocks of blocked image data as image files
GenericImageBlocks object is an adapter that reads and writes
2-D blocked image data as image files.
When writing to disk, the object creates an individual image file for each block and saves the image files in a folder. For multiresolution images, the object creates one subfolder for each resolution level. The object also creates and saves a MAT file with information about the blocked image, including the image size, block size, and data type.
By default, the object writes images as PNG files. To use a different file format, create
the object and then change the file format using the
property. For example, to write images as JPG files, use this code.
adapter = images.blocked.GenericImageBlocks; adapter.BlockFormat = "jpg";
The table lists the support that the
GenericImageBlocks object has for
This object supports 2-D images only:
|Multiple resolution levels||Yes|
|Process blocks in parallel using the ||Yes|
|Resume block processing using the ||Yes|
adapter = images.blocked.GenericImageBlocks creates a
GenericImageBlocks object that reads and writes blocked image data as
image files, with one image file per block.
Create blocked image.
bim = blockedImage('tumor_091R.tif');
Write image data to files. Specify the
wa = images.blocked.GenericImageBlocks(); wa.BlockFormat = "tif"; write(bim, "dirOfTIFFs", "Adapter", wa);
Create a blocked image from the folder of images. The
blockedImage object automatically picks the appropriate adapter.
bt = blockedImage("dirOfTIFFs"); disp(bt.Adapter)
GenericImageBlocks with properties: BlockFormat: "tif"