https://github.com/lau1944/colorblue_control_object
Using OpenCV2 detects blue color , control images position on screen (put the right color in the box !)
https://github.com/lau1944/colorblue_control_object
opencv python
Last synced: 2 months ago
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Using OpenCV2 detects blue color , control images position on screen (put the right color in the box !)
- Host: GitHub
- URL: https://github.com/lau1944/colorblue_control_object
- Owner: lau1944
- Created: 2019-12-29T12:31:31.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2019-12-31T04:24:29.000Z (over 6 years ago)
- Last Synced: 2025-05-24T18:41:51.072Z (about 1 year ago)
- Topics: opencv, python
- Language: Python
- Homepage:
- Size: 901 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# ColorBlue_Control_Object
Using OpenCV2 detects blue color , control images position on screen (put the right color in the box !)
利用颜色控制窗口内目标图片
### A Game Using OpenCV2 To Control Images
After detect color blue, a red point will display on the center of the color blue
Move the red point to the images **slowly** and control the images !
使用时将蓝色中心区域的红点对准图片，缓慢移动图片
Demo:
### Code Explain
- **Step 1** .Display Images and Rectangle box
Randomly produce imageY in three places (50, 250 , 450)
```python
#generate random position for those three colors
blue_dis = random.randrange (50,450,200)
if blue_dis == 450:
yellow_dis = random.randrange(50,250,200)
if yellow_dis == 50:
green_dis = 250
if yellow_dis == 250:
green_dis = 50
elif blue_dis == 50:
yellow_dis = random.randrange(250,450,200)
if yellow_dis == 250:
green_dis = 450
if yellow_dis == 450:
green_dis = 250
elif blue_dis == 250:
yellow_dis = random.randrange(50,450,400)
if yellow_dis == 50:
green_dis = 450
if yellow_dis == 450:
green_dis = 50
```
display images and rectangle box
```python
#insert logo function with random position
InsertLogo_2(frame,blue_img,yBluelogo,blue_dis)
InsertLogo_2(frame,green_img,yGreenlogo,green_dis)
InsertLogo_2(frame,yellow_img,yYellowlogo,yellow_dis)
# yellow box
cv2.rectangle(frame, (50,350), (150, 450),(255,255,0), 3)
# blue box
cv2.rectangle(frame, (200,350), (300, 450),(30,144,255), 3)
# green box
cv2.rectangle(frame, (400,350), (500, 450),(124,252,0), 3)
```
- **Step 2** .Detect Blue Color
```python
#find blue in webcam
centerBlue = None
cnts = cv2.findContours(mask.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[-2]
if len(cnts) > 0:
c = max(cnts, key=cv2.contourArea)
((xBlue, yBlue), radius) = cv2.minEnclosingCircle(c)
M = cv2.moments(c)
# center blue location
xBlue=int(M["m10"] / M["m00"])
yBlue=int(M["m01"] / M["m00"])
centerBlue = (int(M["m10"] / M["m00"]), int(M["m01"] / M["m00"]))
if radius > 10:
mode = False
cv2.circle(frame, centerBlue, 5, (0, 0, 255), -1)
```
- **Step 3** .Control the images
```python
#controller !!
if xBlue >= blue_dis and xBlue <= blue_dis + 100 :
if yBlue >= yBluelogo and yBlue <= yBluelogo+100 :
yBluelogo = yBlue
# xBlue is the central of blue part
# -50 in order to let imageX display on the red point
blue_dis = xBlue-50
if xBlue >= yellow_dis and xBlue <= yellow_dis + 100 :
if yBlue >= yYellowlogo and yBlue <= yYellowlogo+100 :
yYellowlogo = yBlue
yellow_dis = xBlue-50
if xBlue >= green_dis and xBlue <= green_dis + 100 :
if yBlue >= yGreenlogo and yBlue <= yGreenlogo+100 :
yGreenlogo = yBlue
green_dis = xBlue-50
```
## Thank You !