X-Git-Url: http://git.tomasm.cz/imago.git/blobdiff_plain/f66ba63b152a265d8876cb1c82dc7ace7ce5f10a..3f247835cf0314b09b329cb54132d6e529065fd1:/imago_pack/linef.py diff --git a/imago_pack/linef.py b/imago_pack/linef.py index 5eaa0d1..667442c 100644 --- a/imago_pack/linef.py +++ b/imago_pack/linef.py @@ -13,83 +13,74 @@ except ImportError, msg: import filters from hough import Hough -def prepare(image, show_all, do_something, verbose): +def prepare(image, show_image, logger): # TODO comment im_l = image.convert('L') - if show_all: - do_something(im_l, "ITU-R 601-2 luma transform") + show_image(im_l, "ITU-R 601-2 luma transform") - if verbose: - print >> sys.stderr, "edge detection" + logger("edge detection") im_edges = filters.edge_detection(im_l) - if show_all: - do_something(im_edges, "edge detection") + show_image(im_edges, "edge detection") im_h = filters.high_pass(im_edges, 100) - if show_all: - do_something(im_h, "high pass filters") + show_image(im_h, "high pass filters") return im_h -def transform(image, hough, show_all, do_something): +def transform(image, hough, show_image): + # TODO comment im_hough = hough.transform(image) - if show_all: - do_something(im_hough, "hough transform") + show_image(im_hough, "hough transform") # im_hough.image = filters.peaks(im_hough.image) - # if show_all: - # do_something(im_hough.image, "peak extraction") + # show_image(im_hough.image, "peak extraction") im_h2 = filters.high_pass(im_hough, 96) - if show_all: - do_something(im_h2, "second high pass filters") + show_image(im_h2, "second high pass filters") im_h2 = filters.components2(im_h2) - if show_all: - do_something(im_h2, "components centers") + show_image(im_h2, "components centers") return im_h2 -def find_lines(image, show_all, do_something, verbose): +def find_lines(image, show_image, verbose): """Find lines in the *image*.""" # TODO refactor into smaller functions - + if verbose: - print >> sys.stderr, "preprocessing" - - if show_all: - do_something(image, "original image") + def logger(m): + print >> sys.stderr, m + else: + def logger(m): + pass + + logger("preprocessing") + show_image(image, "original image") - im_h = prepare(image, show_all, do_something, verbose) + im_h = prepare(image, show_image, logger) hough = Hough.default(im_h) - if verbose: - print >> sys.stderr, "hough transform" + logger("hough transform") - im_h2 = transform(im_h, hough, show_all, do_something) + im_h2 = transform(im_h, hough, show_image) - if verbose: - print >> sys.stderr, "second hough transform" + logger("second hough transform") # im_hough might be used instead im_h2, but at the moment it brings a lot of # noise to the second transform, which later confuses the center-finding # mechanism (which is not very robust yet) hough2 = Hough.default(im_h2) im_hough2 = hough2.transform(im_h2) - if show_all: - do_something(im_hough2, "second hough transform") + show_image(im_hough2, "second hough transform") im_h3 = filters.high_pass(im_hough2, 120) - if show_all: - do_something(im_h3, "third high pass filter") + show_image(im_h3, "third high pass filter") im_h3 = filters.components(im_h3) - if show_all: - do_something(im_h3, "half centers") + show_image(im_h3, "half centers") - if verbose: - print >> sys.stderr, "finding the grid" + logger("finding the grid") lines_m = hough2.all_lines_h(im_h3) lines = [] @@ -114,15 +105,13 @@ def find_lines(image, show_all, do_something, verbose): line_points.sort() bounds += [line_points[0], line_points[-1]] - if show_all: - do_something(im_c, "hough x lines") + show_image(im_c, "hough x lines") image_g = image.copy() draw = ImageDraw.Draw(image_g) for line in [l for s in lines for l in s]: draw.line(line_from_angl_dist(line, image.size), fill=(120, 255, 120)) - if show_all: - do_something(image_g, "lines") + show_image(image_g, "lines") return lines, lines_m[0][0], lines_m[1][0], bounds, hough