B N[Y @sZddlmZmZddlmZddlmZGdddeZedd d d gd d Ze edS))absolute_importunicode_literals) TiffFormat)formatsc@s*eZdZdZddZGdddejZdS) FEISEMFormata=Provide read support for TIFFs produced by an FEI SEM microscope. This format is based on TIFF, and supports the same parameters. FEI microscopes append metadata as ASCII text at the end of the file, which this reader correctly extracts. Parameters for get_data ----------------------- discard_watermark : bool If True (default), discard the bottom rows of the image, which contain no image data, only a watermark with metadata. watermark_height : int The height in pixels of the FEI watermark. The default is 70. cCsdS)NF)selfrequestr r 5lib/python3.7/site-packages/imageio/plugins/feisem.py _can_writeszFEISEMFormat._can_writecs(eZdZd fdd Zd ddZZS) zFEISEMFormat.ReaderrTFcs0ttj||\}}|r(|d| }||fS)a"Get image and metadata from given index. FEI images usually (always?) contain a watermark at the bottom of the image, 70 pixels high. We discard this by default as it does not contain any information not present in the metadata. N)superrReader _get_data)r indexZdiscard_watermarkZwatermark_heightZimmeta) __class__r r r szFEISEMFormat.Reader._get_dataNc Csdii}d}d}|j}t|d}x|D]}|sF|dsBq,nd}|}|drv|dd}i||<q,|r,|dkr,|d \}} x6tt fD]*} y | | } Wnt k rwYqXPqW| |||<q,WWd QRX|dst |d krt d ||j ||S) aRead the metadata from an FEI SEM TIFF. This metadata is included as ASCII text at the end of the file. The index, if provided, is ignored. Returns ------- metadata : dict Dictionary of metadata. rootFrbsDate=T[]=Nrz'Input file %s contains no FEI metadata.)r Zget_local_filenameopen startswithrstripdecodelstripsplitintfloat ValueErrorlenZ_metaupdate) r rZmdZ current_tagZreading_metadatafilenameZfinlinekeyvalZtag_typer r r _get_meta_data-s6            z"FEISEMFormat.Reader._get_meta_data)rTr)N)__name__ __module__ __qualname__rr* __classcell__r r )rr rs rN)r+r,r-__doc__r rrr r r r r srZfeizFEI-SEM TIFF formatz.tifz.tiffZiv) extensionsZmodesN) Z __future__rrZtifffilerrrformatZ add_formatr r r r s   O