def get_heatmap(self, type='raw'):
"""
Returns heatmap calculated from saliency map of image passed to SightSpotDetector constructor.
Parameters
----------
type : 'raw' or 'precise'
Specifies whenever segmentation will be used to improve saliency map (slower).
Returns
-------
out : PIL.Image
Heatmap.
"""
if type == 'raw':
if self._raw_heatmap == None:
saliency_map = self._get_saliency_map(type)
self._raw_heatmap = SightSpotUtil.eval_heatmap(saliency_map)
return self._raw_heatmap.copy()
if type == 'precise':
if self._precise_heatmap == None:
fusion_map = self._get_saliency_map(type)
self._precise_heatmap = SightSpotUtil.eval_heatmap(fusion_map)
return self._precise_heatmap.copy()
raise Exception('Unknown argument value type = "' + str(type) + '"')
def get_heatmap(self, type='raw'):
"""
Returns heatmap calculated from saliency map of image passed to SightSpotDetector constructor.
Parameters
----------
type : 'raw' or 'precise'
Specifies whenever segmentation will be used to improve saliency map (slower).
Returns
-------
out : PIL.Image
Heatmap.
"""
if type == 'raw':
if self._raw_heatmap == None:
saliency_map = self._get_saliency_map(type)
self._raw_heatmap = SightSpotUtil.eval_heatmap(saliency_map)
return self._raw_heatmap.copy()
if type == 'precise':
if self._precise_heatmap == None:
fusion_map = self._get_saliency_map(type)
self._precise_heatmap = SightSpotUtil.eval_heatmap(fusion_map)
return self._precise_heatmap.copy()
raise Exception('Unknown argument value type = "' + str(type) + '"')
def run(image, mask=None, smoothing=False, show=False, show_now=True):
if mask is None:
mask = np.ones_like(image)
im_orig = image.copy()
else:
image, mask = tools.crop_to_bbox(image, mask)
im_orig = image.copy()
mean_v = int(image[np.nonzero(mask)].mean())
image = np.where(mask, image, mean_v)
mask = mask.astype(np.uint8)
if smoothing:
image = tools.smoothing(image)
# defaultne hleda svetle oblasti
image = np.invert(image)
rgb_image = cv2.cvtColor(image, cv2.COLOR_BAYER_GR2RGB).astype(np.float32)
# print 'Calculate saliency map for test image:'
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
# start = time.clock()
saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, 1.0, 40.0, 'auto')
# print 'Saliency map extracted in', time.clock() - start, 'sec.'
# start = time.clock()
# heatmap_image = SightSpotUtil.eval_heatmap(saliency_map)
# heatmap_image = np.asarray(heatmap_image)
# heatmap_image.setflags(write=True)
# print 'Heatmap extracted in', time.clock() - start, 'sec.'
saliency_map *= mask
# heatmap_image *= np.dstack((mask, mask, mask))
im_orig *= mask
saliency_map = skiexp.rescale_intensity(saliency_map, out_range=(0, 1))
if show:
if smoothing:
plt.subplot(131), plt.imshow(im_orig, 'gray', interpolation='nearest'), plt.title('input')
plt.subplot(132), plt.imshow(image, 'gray', interpolation='nearest'), plt.title('smoothed')
plt.subplot(133), plt.imshow(saliency_map, 'gray', interpolation='nearest'), plt.title('saliency')
else:
plt.subplot(121), plt.imshow(im_orig, 'gray', interpolation='nearest'), plt.title('input')
plt.subplot(122), plt.imshow(saliency_map, 'gray', interpolation='nearest'), plt.title('saliency')
if show_now:
plt.show()
return im_orig, image, saliency_map
def _get_saliency_map(self, type):
orgb_image = self._get_orgb_image()
if type == 'raw':
if self._saliency_map is None:
small_sigma = self._small_sigma
large_sigma = self._large_sigma
self._saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, small_sigma, large_sigma, 'auto')
return self._saliency_map
if type == 'precise':
if self._fusion_map is None:
saliency_map = self._get_saliency_map(type='raw')
cell_size = self._cell_size
alpha = self._SLIC_ALPHA
iterations = self._ITERATION_NUMBER
segmentation_map = SightSpotUtil.eval_slic_map(orgb_image, cell_size, alpha, iterations)
self._fusion_map = SightSpotUtil.combine_saliency_and_segmentation(saliency_map, segmentation_map)
return self._fusion_map
raise Exception('Unknown argument value type = "' + str(type) + '"')
def _get_saliency_map(self, type):
orgb_image = self._get_orgb_image()
if type == 'raw':
if self._saliency_map is None:
small_sigma = self._small_sigma
large_sigma = self._large_sigma
self._saliency_map = SightSpotUtil.eval_saliency_map(
orgb_image, small_sigma, large_sigma, 'auto')
return self._saliency_map
if type == 'precise':
if self._fusion_map is None:
saliency_map = self._get_saliency_map(type='raw')
cell_size = self._cell_size
alpha = self._SLIC_ALPHA
iterations = self._ITERATION_NUMBER
segmentation_map = SightSpotUtil.eval_slic_map(
orgb_image, cell_size, alpha, iterations)
self._fusion_map = SightSpotUtil.combine_saliency_and_segmentation(
saliency_map, segmentation_map)
return self._fusion_map
raise Exception('Unknown argument value type = "' + str(type) + '"')
def _get_saliency_map(self, type):
orgb_image = self._get_orgb_image()
if type == 'raw':
if self._saliency_map is None:
small_sigma = self._small_sigma
large_sigma = self._large_sigma
self._saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, small_sigma, large_sigma, 'auto')
return self._saliency_map
if type == 'precise':
if self._fusion_map is None:
saliency_map = self._get_saliency_map(type='raw')
cell_size = self._cell_size
alpha = self._SLIC_ALPHA
iterations = self._ITERATION_NUMBER
self._segmentation_map = SightSpotUtil.eval_slic_map(orgb_image, cell_size, alpha, iterations)
self._fusion_map = SightSpotUtil.combine_saliency_and_segmentation(saliency_map, self._segmentation_map)
# _visualize_clusters(self._segmentation_map).show('Clusters in random colors')
# _visualize_contours(self._rgb_image, self._segmentation_map, (255, 255, 0)).show('Cluster contours')
# _visualize_averaging(self._rgb_image, self._segmentation_map).show('Averaging')
return self._fusion_map
raise Exception('Unknown argument value type = "' + str(type) + '"')
def threshold(self, source, value='auto'):
"""
Returns black-and-white image - thresholded version of saliency map.
Parameters
----------
source : 'raw' or 'precise'
Which saliency map to use for thresholding.
type : float or 'auto'
Specifies thresholding value.
Returns
-------
out : PIL.Image
Binary image.
"""
saliency_map = self._get_saliency_map(source)
return Image.fromarray(255.0 * SightSpotUtil.threshold(saliency_map, value)).convert('RGB')
def get_foreground(self, source, value='auto'):
"""
Removes background pixels from input image and returns result.
Parameters
----------
source : 'raw' or 'precise'
Which saliency map to use for thresholding.
type : float or 'auto'
Specifies thresholding value.
Returns
-------
out : PIL.Image
Image without background pixels.
"""
saliency_map = self._get_saliency_map(source)
return Image.fromarray(SightSpotUtil.remove_background(self._rgb_image, saliency_map, value))
def get_foreground(self, source, value='auto'):
"""
Removes background pixels from input image and returns result.
Parameters
----------
source : 'raw' or 'precise'
Which saliency map to use for thresholding.
type : float or 'auto'
Specifies thresholding value.
Returns
-------
out : PIL.Image
Image without background pixels.
"""
saliency_map = self._get_saliency_map(source)
return Image.fromarray(
SightSpotUtil.remove_background(self._rgb_image, saliency_map,
value))
def threshold(self, source, value='auto'):
"""
Returns black-and-white image - thresholded version of saliency map.
Parameters
----------
source : 'raw' or 'precise'
Which saliency map to use for thresholding.
type : float or 'auto'
Specifies thresholding value.
Returns
-------
out : PIL.Image
Binary image.
"""
saliency_map = self._get_saliency_map(source)
return Image.fromarray(
255.0 *
SightSpotUtil.threshold(saliency_map, value)).convert('RGB')
def cut_objects(self, source, value='auto'):
"""
Extract connected components from thresholded saliency map and cuts images.
Parameters
----------
source : 'raw' or 'precise'
Which saliency map to use for thresholding.
type : float or 'auto'
Specifies thresholding value.
Returns
-------
out : list of PIL.Images
Detected objects.
"""
saliency_map = self._get_saliency_map(source)
result = SightSpotUtil.detect_objects(self._rgb_image, saliency_map, value)
windows = []
for item in result:
windows.append(Image.fromarray(item))
return windows
def cut_objects(self, source, value='auto'):
"""
Extract connected components from thresholded saliency map and cuts images.
Parameters
----------
source : 'raw' or 'precise'
Which saliency map to use for thresholding.
type : float or 'auto'
Specifies thresholding value.
Returns
-------
out : list of PIL.Images
Detected objects.
"""
saliency_map = self._get_saliency_map(source)
result = SightSpotUtil.detect_objects(self._rgb_image, saliency_map,
value)
windows = []
for item in result:
windows.append(Image.fromarray(item))
return windows
cluster_idx = (segmentation_map == i - 1)
cluster_size = numpy.sum(cluster_idx)
if cluster_size == 0:
palette_items.append((0, 0, 0))
else:
avg = numpy.sum(rgb_image[cluster_idx], axis=0) / cluster_size
palette_items.append(tuple(avg))
palette = numpy.array(palette_items, dtype='uint8')
visualization = palette[segmentation_map + 1]
return Image.fromarray(visualization)
if __name__ == '__main__':
print 'Segmentation of test image:'
image = Image.open('flower.jpg')
rgb_image = numpy.asarray(image, dtype='float32')
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
start = time.clock()
segmentation_map = SightSpotUtil.eval_slic_map(orgb_image, 32.0, 0.25, 4)
print 'Segmentation map extracted in', time.clock() - start, 'sec.'
print 'Segment number:', numpy.max(segmentation_map) + 1
_visualize_clusters(segmentation_map).show('Clusters in random colors')
_visualize_contours(rgb_image, segmentation_map, (255, 255, 0)).show('Cluster contours')
_visualize_averaging(rgb_image, segmentation_map).show('Averaging')
print 'Use segmentation to improve clustering...'
saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, 3.0, 60.0, 'auto')
precise_saliency_map = SightSpotUtil.combine_saliency_and_segmentation(saliency_map, segmentation_map)
precise_saliency_image = Image.fromarray(precise_saliency_map * 255)
precise_saliency_image.show('Pixel-precise saliency image')
print "RGB (0, 0, 1) is oRGB (%f, %f, %f) for BLUE " % _rgb2orgb(
0, 0, 1) # Blue.
print "RGB (1, 1, 0) is oRGB (%f, %f, %f) for YELLOW " % _rgb2orgb(
1, 1, 0) # Yellow.
print "RGB (0, 1, 1) is oRGB (%f, %f, %f) for SKY-BLUE" % _rgb2orgb(
0, 1, 1) # Sky-blue.
print "RGB (1, 0, 1) is oRGB (%f, %f, %f) for MAGENTA " % _rgb2orgb(
1, 0, 1) # Magenta.
print "RGB (1, 1, 1) is oRGB (%f, %f, %f) for WHITE " % _rgb2orgb(
1, 1, 1) # White.
print 'Show channels of test image:'
image = Image.open('flower.jpg')
rgb_image = numpy.asarray(image, dtype='float32')
start = time.clock()
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
print 'ORGB image extracted in', time.clock() - start, 'sec.'
print 'Colorizing...'
lu_channel = orgb_image[:, :, 0]
rg_channel = orgb_image[:, :, 1]
yb_channel = orgb_image[:, :, 2]
lu_image = Image.fromarray(lu_channel * 255 + 0.5)
rg_image = _colorize_channel(rg_channel, (255, 0, 0), (0, 255, 0))
yb_image = _colorize_channel(yb_channel, (255, 255, 0), (0, 0, 255))
image.show('Source image')
lu_image.show('Luminance channel')
rg_image.show('Red-green channel')
yb_image.show('Yellow-blue channel')
def _get_orgb_image(self):
if self._orgb_image is None:
self._orgb_image = SightSpotUtil.eval_orgb_image(self._rgb_image)
return self._orgb_image
cluster_size = numpy.sum(cluster_idx)
if cluster_size == 0:
palette_items.append((0, 0, 0))
else:
avg = numpy.sum(rgb_image[cluster_idx], axis=0) / cluster_size
palette_items.append(tuple(avg))
palette = numpy.array(palette_items, dtype='uint8')
visualization = palette[segmentation_map + 1]
return Image.fromarray(visualization)
if __name__ == '__main__':
print 'Segmentation of test image:'
image = Image.open('flower.jpg')
rgb_image = numpy.asarray(image, dtype='float32')
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
start = time.clock()
segmentation_map = SightSpotUtil.eval_slic_map(orgb_image, 32.0, 0.25, 4)
print 'Segmentation map extracted in', time.clock() - start, 'sec.'
print 'Segment number:', numpy.max(segmentation_map) + 1
_visualize_clusters(segmentation_map).show('Clusters in random colors')
_visualize_contours(rgb_image, segmentation_map,
(255, 255, 0)).show('Cluster contours')
_visualize_averaging(rgb_image, segmentation_map).show('Averaging')
print 'Use segmentation to improve clustering...'
saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, 3.0, 60.0,
'auto')
precise_saliency_map = SightSpotUtil.combine_saliency_and_segmentation(
__author__ = 'Igor Ryabtsov aka Tinnulion'
__copyright__ = 'Copyright (c) 2014'
__license__ = 'Apache 2.0'
__version__ = '1.0'
import time
import numpy
from PIL import Image
import SightSpotUtil
if __name__ == '__main__':
print 'Calculate saliency map for test image:'
image = Image.open('flower.jpg')
rgb_image = numpy.asarray(image, dtype='float32')
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
start = time.clock()
saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, 3.0, 60.0,
'auto')
print 'Saliency map extracted in', time.clock() - start, 'sec.'
start = time.clock()
heatmap_image = SightSpotUtil.eval_heatmap(saliency_map)
print 'Heatmap extracted in', time.clock() - start, 'sec.'
saliency_image = Image.fromarray(saliency_map * 255)
image.show('Source image')
saliency_image.show('Saliency image')
heatmap_image.show('Heatmap')
def _rgb2orgb(r, g, b):
rgb_image = numpy.array([[[255.0 * r, 255.0 * g, 255.0 * b]]],
dtype='float32')
orgb = SightSpotUtil.eval_orgb_image(rgb_image)[0, 0]
return tuple(orgb)
def _rgb2orgb(r, g, b):
rgb_image = numpy.array([[[255.0 * r, 255.0 * g, 255.0 * b]]], dtype='float32')
orgb = SightSpotUtil.eval_orgb_image(rgb_image)[0, 0]
return tuple(orgb)
def _get_orgb_image(self):
if self._orgb_image is None:
self._orgb_image = SightSpotUtil.eval_orgb_image(self._rgb_image)
return self._orgb_image
print 'Test some basic oRGB color conversions:'
print "RGB (0, 0, 0) is oRGB (%f, %f, %f) for BLACK " % _rgb2orgb(0, 0, 0) # Black.
print "RGB (1, 0, 0) is oRGB (%f, %f, %f) for RED " % _rgb2orgb(1, 0, 0) # Red.
print "RGB (0, 1, 0) is oRGB (%f, %f, %f) for GREEN " % _rgb2orgb(0, 1, 0) # Green.
print "RGB (0, 0, 1) is oRGB (%f, %f, %f) for BLUE " % _rgb2orgb(0, 0, 1) # Blue.
print "RGB (1, 1, 0) is oRGB (%f, %f, %f) for YELLOW " % _rgb2orgb(1, 1, 0) # Yellow.
print "RGB (0, 1, 1) is oRGB (%f, %f, %f) for SKY-BLUE" % _rgb2orgb(0, 1, 1) # Sky-blue.
print "RGB (1, 0, 1) is oRGB (%f, %f, %f) for MAGENTA " % _rgb2orgb(1, 0, 1) # Magenta.
print "RGB (1, 1, 1) is oRGB (%f, %f, %f) for WHITE " % _rgb2orgb(1, 1, 1) # White.
print 'Show channels of test image:'
image = Image.open('flower.jpg')
rgb_image = numpy.asarray(image, dtype='float32')
start = time.clock()
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
print 'ORGB image extracted in', time.clock() - start, 'sec.'
print 'Colorizing...'
lu_channel = orgb_image[:,:,0]
rg_channel = orgb_image[:,:,1]
yb_channel = orgb_image[:,:,2]
lu_image = Image.fromarray(lu_channel * 255 + 0.5)
rg_image = _colorize_channel(rg_channel, (255, 0, 0), (0, 255, 0))
yb_image = _colorize_channel(yb_channel, (255, 255, 0), (0, 0, 255))
image.show('Source image')
lu_image.show('Luminance channel')
rg_image.show('Red-green channel')
yb_image.show('Yellow-blue channel')
"""
__author__ = 'Igor Ryabtsov aka Tinnulion'
__copyright__ = 'Copyright (c) 2014'
__license__ = 'Apache 2.0'
__version__ = '1.0'
import time
import numpy
from PIL import Image
import SightSpotUtil
if __name__ == '__main__':
print 'Calculate saliency map for test image:'
image = Image.open('flower.jpg')
rgb_image = numpy.asarray(image, dtype='float32')
orgb_image = SightSpotUtil.eval_orgb_image(rgb_image)
start = time.clock()
saliency_map = SightSpotUtil.eval_saliency_map(orgb_image, 3.0, 60.0, 'auto')
print 'Saliency map extracted in', time.clock() - start, 'sec.'
start = time.clock()
heatmap_image = SightSpotUtil.eval_heatmap(saliency_map)
print 'Heatmap extracted in', time.clock() - start, 'sec.'
saliency_image = Image.fromarray(saliency_map * 255)
image.show('Source image')
saliency_image.show('Saliency image')
heatmap_image.show('Heatmap')