本文整理汇总了Python中matplotlib.widgets.RectangleSelector.threshold方法的典型用法代码示例。如果您正苦于以下问题：Python RectangleSelector.threshold方法的具体用法？Python RectangleSelector.threshold怎么用？Python RectangleSelector.threshold使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类matplotlib.widgets.RectangleSelector的用法示例。
在下文中一共展示了RectangleSelector.threshold方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: draw_keypoints
# 需要导入模块: from matplotlib.widgets import RectangleSelector [as 别名]
# 或者: from matplotlib.widgets.RectangleSelector import threshold [as 别名]
def draw_keypoints(img, keypoints, threshold, inter = True, color = 1):
scales = ftext.getImageScales()
#s = 100
octaves = np.unique( keypoints[:, 2])
if octaves.shape[0] == 0:
return
maxOctave = np.max(octaves)
images = []
selectors = []
drawers = []
for i in range(int(maxOctave) + 1):
scale = scales[i]
dst = ftext.getImageAtScale(i)
cv2.imwrite("/tmp/pycv-{0}.png".format(i), dst)
if color == 1:
images.append(cv2.cvtColor(dst, cv2.COLOR_BGR2RGB))
else:
'''
shape = img.shape
shapet = ( shape[0] * scale, shape[1] * scale)
dst = np.zeros(shapet, dtype=np.uint8)
dst = cv2.resize(img, (0,0), fx=scale, fy=scale)
images.append(cv2.cvtColor(dst, cv2.COLOR_BGR2RGB))
'''
images.append(dst)
#cv2.imshow("img", dst)
#cv2.waitKey(0)
ax_tuple = []
for i in range(int(maxOctave) + 1):
f = plt.figure(num = i)
ax = f.add_subplot(111)
ax_tuple.append(ax)
plt.subplots_adjust(top = 1, bottom = 0, right = 1, left = 0, hspace = 0, wspace = 0)
plt.margins(0,0)
#tmp = cv2.cvtColor(, cv2.COLOR_GRAY2RGB)
ax_tuple[i].imshow(images[i], interpolation='nearest', cmap=mpl.cm.gray)
ax_tuple[i].grid(True)
ax_tuple[i].axis('off')
ax_tuple[i].set_xlim([0, images[i].shape[1]])
ax_tuple[i].set_ylim([images[i].shape[0], 0])
ax_tuple[i].axes.get_xaxis().set_ticks([])
ax_tuple[i].axes.get_yaxis().set_ticks([])
maskOct = keypoints[:, 2] == i
octIdx = np.nonzero(maskOct)
octavePoints = keypoints[keypoints[:, 2] == i, :]
octavePoints[:, 0] *= scales[i]
octavePoints[:, 1] *= scales[i]
octavePoints[:, 5] *= scales[i]
octavePoints[:, 6] *= scales[i]
octavePoints[:, 7] *= scales[i]
octavePoints[:, 8] *= scales[i]
style = 'rx'
c = 'red'
if len(octavePoints) > 0 and octavePoints.shape[1] > 9:
for k in range(6):
maski = octavePoints[:, 9] == k + 1
if k == 1:
style = "rv"
if k == 2:
style = "ro"
if k == 4:
style = "bo"
c = 'blue'
if k == 5:
style = "yo"
continue
if drawGrayScale:
style = 'wv'
if k == 1:
style = "wv"
if k == 2:
style = "wv"
if k == 4:
style = "wo"
c = 'blue'
c = style
ax_tuple[i].scatter(octavePoints[maski, 0], octavePoints[maski, 1],c=c, s=s )
#ax_tuple[i].plot(octavePoints[maski, 0], octavePoints[maski, 1], style, markersize = 10)
else:
ax_tuple[i].plot(octavePoints[:, 0], octavePoints[:, 1], style)
#ax_tuple[i].plot(octavePoints[:, 6] * scales[i], octavePoints[:, 7] * scales[i], 'bo')
#for j in range( octavePoints.shape[0] ):
# ax_tuple[i].plot([octavePoints[j,0] * scales[i], octavePoints[j,6]* scales[i]], [octavePoints[j,1] * scales[i], octavePoints[j,7]* scales[i]], 'r-')
if inter:
rs = RectangleSelector(ax_tuple[i], line_select_callback,
drawtype='box', useblit=True,
button=[1,3], # don't use middle button
minspanx=5, minspany=5,
spancoords='pixels')
#.........这里部分代码省略.........