英文:
Remove/Erase object from image using python
问题
以下是您提供的内容的中文翻译：
我一直在尝试使用OpenCV从图像中删除/擦除用红色突出显示的对象 
我已经取得了一些接近的结果，但它只是降低了对象的透明度
但我希望它完全消失。
以下是代码：
import numpy as npimport sysinput = sys.argv[1]# 加载图像img = cv2.imread(input)# 定义要删除的对象的颜色范围lower_red = np.array([0, 0, 200])upper_red = np.array([50, 50, 255])# 创建一个标识要删除对象的掩码mask = cv2.inRange(img, lower_red, upper_red)# 使用TELEA算法修复对象区域inpaint = cv2.inpaint(img, mask, 3, cv2.INPAINT_TELEA)# 保存修复后的图像cv2.imwrite(input, inpaint)
英文:
I have been trying to Remove/Erase an object from image which is highlighted with red color using opencv
I have achieved a bit closer result but it's just reducing the transparency of the object
but i want it to make it completely invisible.
Here is the code:
import numpy as npimport sysinput = sys.argv[1]# Load the imageimg = cv2.imread(input)# Define the color range of the object to be removedlower_red = np.array([0, 0, 200])upper_red = np.array([50, 50, 255])# Create a mask that identifies the object to be removedmask = cv2.inRange(img, lower_red, upper_red)# Inpaint the object area using the TELEA algorithminpaint = cv2.inpaint(img, mask, 3, cv2.INPAINT_TELEA)# Save the inpainted imagecv2.imwrite(input, inpaint)
答案1
得分: 2
以下是翻译好的内容：
"边缘可能存在问题，无法覆盖所有偏红的像素。您可以膨胀掩码：
import cv2import numpy as npimport sysinput = sys.argv[1]# 加载图像img = cv2.imread(input)# 定义要移除的对象的颜色范围lower_red = np.array([0, 0, 150])upper_red = np.array([100, 100, 255])# 创建一个标识要移除的对象的掩码mask = cv2.inRange(img, lower_red, upper_red)# 使用TELEA算法修复对象区域kernel = np.ones((5,5),np.uint8)dilated_mask = cv2.dilate(mask,kernel,iterations = 1)inpaint = cv2.inpaint(img, dilated_mask, 3, cv2.INPAINT_TELEA)# 保存修复后的图像cv2.imwrite('out_'+input, inpaint)
英文:
The mask may have problem on the edges, and not covering all red-ish pixels. You can dilated the mask:
import cv2import numpy as npimport sysinput = sys.argv[1]# Load the imageimg = cv2.imread(input)# Define the color range of the object to be removedlower_red = np.array([0, 0, 150])upper_red = np.array([100, 100, 255])# Create a mask that identifies the object to be removedmask = cv2.inRange(img, lower_red, upper_red)# Inpaint the object area using the TELEA algorithmkernel = np.ones((5,5),np.uint8)dilated_mask = cv2.dilate(mask,kernel,iterations = 1)inpaint = cv2.inpaint(img, dilated_mask, 3, cv2.INPAINT_TELEA)# Save the inpainted imagecv2.imwrite('out_'+input, inpaint)
答案2
得分: 2
Firstly, you need to save your mask as an image so you can check how well it is selecting your reds:
首先，您需要将您的遮罩保存为图像，以便检查它是否正确选择了红色：
cv2.imwrite("mask.png", mask)
Secondly, you will probably find it more accurate to locate highly saturated reds (and greens etc) in HSL/HSV colourspace. So, have a look for other answers tagged [tag:opencv] and containing "HSV". You'll need
其次，您可能会发现在[HSL/HSV][1]颜色空间中更准确地定位高饱和度的红色（以及绿色等）。因此，请查看其他标记为[tag:opencv]并包含"HSV"的答案。您需要：
HSV = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
and be aware that reds wrap around zero, because the hue wheel is cyclic. See example here.
英文:
Firstly, you need to save your mask as an image so you can check how well it is selecting your reds:
cv2.imwrite("mask.png", mask)
Secondly, you will probably find it more accurate to locate highly saturated reds (and greens etc) in HSL/HSV colourspace. So, have a look for other answers tagged [tag:opencv] and containing "HSV". You'll need
HSV = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
and be aware that reds wrap around zero, because the hue wheel is cyclic. See example here.
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