硬件加速的图像处理
使用硬件替换某些软件部分, 可以让计算更加快速,已经做了加速优化的方法如下:
如下代码, 分别对图像进行了边缘查找
,锐化
,浮雕化
, 利用了卷积计算快速得到结果。
import sensor
import image
import lcd
import time
lcd.init(freq=15000000)
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.run(1)
origin = (0,0,0, 0,1,0, 0,0,0)
edge = (-1,-1,-1,-1,8,-1,-1,-1,-1)
sharp = (-1,-1,-1,-1,9,-1,-1,-1,-1)
relievo = (2,0,0,0,-1,0,0,0,-1)
tim = time.time()
while True:
img=sensor.snapshot()
img.conv3(edge)
lcd.display(img)
if time.time() -tim >10:
break
tim = time.time()
while True:
img=sensor.snapshot()
img.conv3(sharp)
lcd.display(img)
if time.time() -tim >10:
break
tim = time.time()
while True:
img=sensor.snapshot()
img.conv3(relievo)
lcd.display(img)
if time.time() -tim >10:
break
lcd.clear()