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spd(1)							      General Commands Manual							    spd(1)

spd - SPatial Distortion Program SYNOPSIS
Synchrotron image corrections and azimuthal integration DESCRIPTION
SPD stands for SPatial Distortion. Written in C language, this command-line driven program deals with images coming from X-ray diffu- sion/diffraction experiments. It does subsequently: * intensity corrections (dark current, flat field correction, ...), * geometry corrections using spline files or a pair of distortion arrays, * azimuthal integration in 2D or 1D after masking defective pixels. SPD was originally written by Jorg Klora for ESRF and was re-written by Peter Boesecke from ESRF/ID02. Maintenance and packaging of the program are provided by Rainer Wilcke and Jerome Kieffer from SciSoft at ESRF. OPTIONS
Usage: spd [--server] [--exit] parameter=option [filenames] src_id=<source image shared memory id> src_ext=<source image file extension> (default none) cor_id=<shared memory id of corrected image> cor_ext=<corrected image file extension> (default none) type=<output data type> (default "FloatIEEE32") dvo=<value> data value offset (default 0) dark_id=<dark image shared memory id> dark_file=<dark image file name> dark_const=<value> subtract constant dark image value default: no dark image subtraction done dark_ext=<dark image file extension> default none do_dark=0|1 if 0, suppress dark image correction default 1 save_dark=0|1|2 save dark image memory to file 0: never, 1: always, 2: only if new (default 2) inp_const=<value> add input image constant (default 0.) inp_exp=<value> apply exponent to input image (default 1.) inp_factor=<value> multiply with input image factor (default 1.) raw_cmpr="none"|"gzip"|"z" compression of raw & dark images (default none) flood_id=<flood field image shared memory id> (or flat field) flood_file=<flood field image file name> (default: no flood field used) bckg_id=<scattering background image shared memory id> bckg_file=<scattering background image file name> (default: no scattering background used) bckg_const=<additive scattering constant> (default 0.) bckg_fact=<constant scattering factor> (default 1.) header_id=<shared memory id for data header> (default: not used) pass=0|1 pass input file header to output (default 0) header_min=<minimum header length for output file> (default 0) header_ext=<extension for header output file> (default none) distortion_file=<file> (default "spatial.dat") xfile=<file> (x distortion read from edf file) yfile=<file> (y distortion read from edf file) xoutfile=<file> (x distortion saved to edf file) youtfile=<file> (y distortion saved to edf file) active_radius=<value> (values outside will not be corrected) precen_1=xxx for pre-rotation center_1 (default calculated) precen_2=xxx for pre-rotation center_2 (default calculated) predis=xxx for pre-rotation distance (default calculated) prerot_1=<angle (rad) for pre-rotation around axis 1> (default 0.) prerot_2=<angle (rad) for pre-rotation around axis 2> (default 0.) prerot_3=<angle (rad) for pre-rotation around axis 3> (default 0.) psize_distort=0|1|2 take image params from distortion file 0: none, 1: pix, 2: pix, cen, dis, proj, rot (default 0) cen_1=xxx if set, defines Center_1 header value cen_2=xxx if set, defines Center_2 header value i0=xxx if set, defines Intensity0 header value i1=xxx if set, defines Intensity1 header value off_1=xxx if set, defines Offset_1 header value off_2=xxx if set, defines Offset_2 header value pix_1=xxx if set, defines PSize_1 header value pix_2=xxx if set, defines PSize_2 header value bis_1=xxx if set, defines BSize_1 header value bis_2=xxx if set, defines BSize_2 header value dis=xxx if set, defines SampleDistance header value ori=xxx if set, defines RasterOrientation header value tit=xxx if set, defines Title header value wvl=xxx if set, defines WaveLength header value pro="Saxs"|"Waxs" projection type of image (default Saxs) rot_1=<angle (rad) for detector rotation plane 1> (default 0.) rot_2=<angle (rad) for detector rotation plane 2> (default 0.) rot_3=<angle (rad) for detector rotation plane 3> (default 0.) base_name=<name> (default "image") outdir=<pathname> directory for output files (default: base_name) verbose=-1|0|1|2 message printing level (low -> high, default 1) version=0|1 print version string of the program if != 0 simul=0|1 (default 0) do_distortion=0|1|2|3 distortion correction (default 1) (0: none, 1: after dark, 2: after flat, 3: after norm) flat_distortion=0|1 normalize to flat imgage (default 1) do_prerotation=0|1|2 pre-rotation correction (default 1) (0: none, 1: after, 2: without distortion correction) norm_int=0|1 intensity normalization (default 0 = no) norm_factor=<intensity normalization factor> (default 1.) overflow=xxx (default 0 = not set) dummy=<value> (default 0. = not set) inp_min=<value> (default 0. = not set) inp_max=<value> (default 0. = not set) bin_1=<value> factor for x-binning (default 1 = no binning) bin_2=<value> factor for y-binning (default 1 = no binning) azim_int=0|1 azimuthal regrouping (default 0 = no) azim_pass=0|1 pass full header to azimuthal regrouping (def. 1 = yes) azim_pro="Saxs"|"Waxs" project. type of azim. regrp. (default Saxs) azim_id=<shared memory id of regrouped image> (default -1) azim_ext=<file extension of regrouped image> (default none) azim_r0=<value> minimum regrouping radius (default 0.) azim_r_num=<value> radial output size (default 0) azim_a0=<degrees> 1st regrouping start angle (default 0.) azim_a1=<degrees> 2nd regrouping start angle (default: not used) azim_da=<degrees> angular regrouping interval (default 1.) azim_a_num=<value> angular output size (default 0) ave_id=<shared memory id of averaged image> (default -1) ave_ext=<file extension of averaged image> (default none) ave_scf=<scale factor for "s" values> (default 1.) mask_file=<azimuthal regrouping mask file name> (default: not used) --server switch to server mode, i.e. wait for new command/image to process on stdin --exit quit the program when we are on server mode. BUGS
Azimuthal integration can only be achieved if a wavelength is given, even if it is not needed for any calculation. SPD was developed at ESRF and is tightly bound to Spec shared-memory arrays ( and EDF (ESRF Data Format) images, both in input and output. SPD
=1.3 SAXS=2.445 EDF=2.188 Oct 5 2011 spd(1)
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