操作系统:ubuntu
我试图使用cv包中的函数检测给定图像中对象的边缘。
首先,我跑了qlua'在我的ubuntu终端。
local cv = reuqire 'cv'
require 'cv'
reuqire 'image'
lena_p = image.load('/home/stone/codes/lena1.jpg')
image.dispaly(lena_p)
cv.rectangle{lena_p,{5,5},{10,10},color = {30,30,180},thickness = 2}
ca_l = cv.Canny{image=limg,threshold=1,threshold=10}
但是,它失败并出现以下错误:
[string" cv.rectangle {lena_p,{5,5},{10,10},color = {30 ..."]:1:尝试索引全局' CV' (一个零值)堆栈追溯:[string" cv.rectangle {lena_p,{5,5},{10,10},color = {30 ..."]:1:在主块中[C]:在0x7f6be51eaba0
[string" ca_l = cv.Canny {image = limg,threshold = 1,thresh ..."]:1:尝试索引全局' cv' (零值) 堆栈追溯: [string" ca_l = cv.Canny {image = limg,threshold = 1,thresh ..."]:1:in main chunk [C]:在0x7feb66429ba0
我的问题是,我怎样才能使用' cv'包检测物体轮廓?
REF: https://github.com/VisionLabs/torch-opencv/tree/master/cv
答案 0 :(得分:0)
你缺少火炬cv。您可以通过在终端中执行以下命令来安装它:
luarocks install cv