zetastitcher.io.zipwrapper module¶

This module provides ZipWrapper, a class for accessing a stack of images stored in a .zip file one frame per file. Files inside the .zip archive must will be accessed in alphabetical order.

For faster access when using compressed formats (such as JPEG2000), a cache can optionally be anabled using set_cache().

class zetastitcher.io.zipwrapper.ZipWrapper(file_path=None)¶

Bases: zetastitcher.io.inputfile_mixin.InputFileMixin

Attributes

array_size: Size in bytes of the whole virtual array
file_size
frame_size: Size in bytes of a single frame
shape: Shape of the whole image stack.

Methods

close
frame
open
zslice

frame(index, dtype=None, copy=None)¶

open(file_path=None)¶

zslice(arg1, arg2=None, step=None, dtype=None, copy=None)¶

zetastitcher.io.zipwrapper.get_typecodes()¶

zetastitcher.io.zipwrapper.imread_wrapper(fname, internal_fname, dtype=None)¶

zetastitcher.io.zipwrapper.set_cache(cache)¶

Set a cache for ZipWrapper.zslice.

Example:

import zetastitcher.io.zipwrapper as zw
from cachetools import LRUCache
zw.set_cache(LRUCache(maxsize=32))

Parameters

cachecachetools.Cache: The cache instance to use.