我正在使用PIL来平均视频子区域的像素强度。我想做的是:
- 使用ffmpeg将视频转换为多个帧
- 使用PIL在每个框架中选择一个窗口(这是我需要帮助的步骤)
- 在每个框架中对该窗口进行某种分析,并汇总数据(例如,平均颜色与时间)
我对如何做中间步骤感到十分茫然 - 有没有人有建议?
答案 0 :(得分:0)
使用Tkinter找到解决方案:
import Tkinter
import Image, ImageDraw, ImageTk
window = Tkinter.Tk()
window.title('Calcium Imaging Software')
mouse_X = 0
mouse_Y = 0
ellipseBox = []
listOfCircles = []
#stuff to set up the image
image = Image.open("test.jpg")
draw = ImageDraw.Draw(image)
canvas = Tkinter.Canvas(window, width=image.size[0], height=image.size[1])
canvas.pack()
image_tk = ImageTk.PhotoImage(image)
canvas.create_image(image.size[0]//2, image.size[1]//2, image=image_tk)
#define a function to be run on the mouseclick
def drawEllipse(event):
global ellipseBox
print "clicked at: ", event.x, event.y
mouse_X = event.x
mouse_Y = event.y
ellipseBox.append((mouse_X,mouse_Y))
print "box corners: ",ellipseBox
#When two corners are selected, draw the ellipse
if len(ellipseBox) == 2:
draw.ellipse(ellipseBox,outline=(255,255,255))
listOfCircles.append(tuple(ellipseBox))
ellipseBox = []
window.update()
#bind mouse click to drawing an ellipse
canvas.bind("<Button-1>", drawEllipse)
Tkinter.mainloop()
这几乎可以满足我的一切需求!但是,我无法在图像上显示省略号 - 任何建议?