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Hi all,
I´m trying to generate a mask from an region of interest ROI in IDL, and then apply over an image.img,
From an vector, I generate the ROI (in ENVI) exporting active layer to roi (one ROI), then I save the ROI.
I generate the mask from a “region of interest.roi”, the code works, but doit wrong, because the mask generated with the roi have diferent numbers of files and columns that the original image, then the image masked had a wrong size. I attach the code in the bottom,
pro example_envi_roi_to_image_doit
;
; First restore all the base save files.
;
envi, /restore_base_save_files
;
; Initialize ENVI and send all errors
; and warnings to the file batch.txt
;
; envi_batch_init, log_file='f:\working\batch.txt'
;
; Open the input file associated with
; the ROIs
;
envi_open_file, 'c:\javier\borrar\image.img', r_fid=fid
if (fid eq -1) then begin
envi_batch_exit
return
endif
;
; Restore the ROI file and get all
; the available ROI ids.
;
envi_restore_rois, 'c:\javier\vectores\region_of_interest.roi'
roi_ids = envi_get_roi_ids()
if (roi_ids[0] eq -1) then return
;
; Set the necessary variables
;
class_values = lindgen(n_elements(roi_ids))+1
;
; Call the doit
;
out_name2 = 'c:\javier\borrar\mask_javier'
envi_doit, 'envi_roi_to_image_doit', $
fid=fid, roi_ids=roi_ids, out_name=out_name2, $
class_values=class_values
ENVI_select, fid=fid2
ENVI_FILE_QUERY, fid, NS = ns, NL = nl, NB = nb
; Set the keyword parameters
m_dims = [-1L, 0, ns - 1, 0, nl - 1]
pos = LINDGEN(nb)
m_pos = [0]
out_name3='c:\javier\borrar\mask_aplicada.img
; Call the 'doit'
ENVI_MASK_APPLY_DOIT, fid = fid, POS = pos, DIMS = m_dims, $
M_FID = fid2, M_POS = m_pos, VALUE = 0, OUT_NAME = out_name3, $
IN_MEMORY = 0, R_FID = r_fid
;Exit ENVI
;envi_batch_exit
end
I´m making something bad about the generation of the mask,
somebody can help me?
thanks in advance,
Javier.
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