o h @s$dZddlmZGdddeZdS)aMRead TIFF from FEI SEM microscopes. Backend Library: internal This format is based on :mod:`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 ---------- 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. See Also -------- :mod:`imageio.plugins.tifffile` ) TiffFormatc@s*eZdZdZddZGdddejZdS) FEISEMFormatz!See :mod:`imageio.plugins.feisem`cCsdS)NF)selfrequestrrQ/var/www/html/scripts/venv/lib/python3.10/site-packages/imageio/plugins/feisem.py _can_write!szFEISEMFormat._can_writecs(eZdZd fdd Zd ddZZS) zFEISEMFormat.ReaderTFcs0ttj||\}}|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)rindexdiscard_watermarkwatermark_heightimmeta __class__rrr %szFEISEMFormat.Reader._get_dataNc Cs t|dr|jSdii}d}d}|j}t|dddW}|D]L}|s+|ds)qd}|}|d rA|d d }i||<qd |vrk|jd d d \}} t t fD]} z| | } Wn t ycYqRw| |||<qWdn1svwY|dst |d krt d|||_|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. _fei_metarootFutf8ignore)encodingerrorszDate=T[]=r)maxsplitNz'Input file %s contains no FEI metadata.) hasattrrrget_local_filenameopen startswithrstriplstripsplitintfloat ValueErrorlen) rrmd current_tagreading_metadatafilenamefinlinekeyvaltag_typerrr_get_meta_data2sB          z"FEISEMFormat.Reader._get_meta_data)r Tr )N)__name__ __module__ __qualname__r r3 __classcell__rrrrr $s r N)r4r5r6__doc__rrr rrrrrsrN)r8tifffilerrrrrrs