This is my code.
import cv2
face_cascade = cv2.CascadeClassifier("Resources/haarcascade_frontalface_default.xml")
img = cv2.imread("Resources/skirt.PNG")
gray_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray_img,scaleFactor = 1.1,minNeighbors=4)
for (x,y,w,h) in faces:
img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
cv2.imshow("Result",img)
cv2.waitKey(0)
Getting this error.
gray_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.5.1) C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-oduouqig\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'
Related
I'm implementing 3D demo application using Babylonjs library for 3D Demo.I'm importing 3D model from S3 and adding texture image on top of material in Reactjs.
But when i add texture image on top of material, rest of area on 3D model gets black color and i want get rid of it. Code works fine in Babylon playground but fails in React app.
Here is the source code
var mat = new BABYLON.CustomMaterial("mat", scene);
mat.diffuseTexture = new BABYLON.Texture(textureImage, scene, false, false);
materialedMeshes.forEach(mesh => mesh.material = mat);
mat.emissiveColor = new BABYLON.Color3(1, 1, 1);
// mat.diffuseColor = new BABYLON.Color3(1, 0, 1);
// mat.specularColor = new BABYLON.Color3(0.5, 0.6, 0.87);
// mat.emissiveColor = new BABYLON.Color3(1, 1, 1);
// mat.ambientColor = new BABYLON.Color3(0.23, 0.98, 0.53);
mat.diffuseTexture.uOffset = -0.1000;
mat.diffuseTexture.vOffset = -1.1800;
mat.diffuseTexture.uScale = 1.2200;
mat.diffuseTexture.vScale = 2.2200;
mat.diffuseTexture.uAng = Math.PI;
mat.diffuseTexture.wrapU = BABYLON.Constants.TEXTURE_CLAMP_ADDRESSMODE;
mat.diffuseTexture.wrapV = BABYLON.Constants.TEXTURE_CLAMP_ADDRESSMODE;
mat.Fragment_Custom_Alpha(`
if (baseColor.r == 0. && baseColor.g == 0. && baseColor.b == 0.) {
baseColor.rgb = vec3(0.85, 0.85, 0.85);
}
baseColor.rgb = mix(vec3(0.85, 0.85, 0.85), baseColor.rgb, baseColor.a);
`)
please help me find the error as i didn’t understand for correctly :
from bs4 import BeautifulSoup
import requests
import pandas as pd
url = 'https://www.imdb.com/chart/top/?ref_=nv_mv_250'
response = requests.get(url)
with open("imdb_top_250_movies.html", mode='wb') as file:
file.write(response.content)
soup = BeautifulSoup(response.content, 'lxml')
df_list = []
for movie in soup:
title = movie.find('td' , class_="titleColumn").find('a').contents[0]
year = movie.find('td' , class_="titleColumn").find('span').contents[0][1:-1]
user_rating = movie.find('td' , class_="ratingColumn imdbRating").find('strong').contents[0]
df_list.append({'title': title,
'year': int(year),
'user_ratings': float(user_rating)})
df = pd.DataFrame(df_list, columns = ['title', 'year', 'user_ratings'])
df
This is the error I got
TypeError Traceback (most recent call
last) Input In [125], in <cell line: 8>()
9 soup = BeautifulSoup(response.content, 'lxml')
10 df_list = []
---> 11 title = movie.find('td' , class_="titleColumn").find('a').contents[0]
12 year = soup.find('td' , class_="titleColumn").find('span').contents[0][1:-1]
13 user_rating = soup.find('td' , class_="ratingColumn imdbRating").find('strong').contents[0]
TypeError: find() takes no keyword arguments
Someone helped me with this answer as I wrote For incorrectly :
from bs4 import BeautifulSoup
import requests
import pandas as pd
url = 'https://www.imdb.com/chart/top'
response = requests.get(url)
with open("imdb_top_250_movies.html", mode='wb') as file:
file.write(response.content)
soup = BeautifulSoup(response.content, 'lxml')
df_list = []
for movie in soup.find('tbody' , class_="lister-list").find_all('tr'):
Place = movie.find('td' , class_="titleColumn").contents[0][1:-len('.\n ')]
title = movie.find('td' , class_="titleColumn").find('a').contents[0]
year = movie.find('td' , class_="titleColumn").find('span').contents[0][1:-1]
user_rating = movie.find('td' , class_="ratingColumn imdbRating").find('strong').contents[0]
df_list.append({'place': Place,
'title': title,
'year': int(year),
'user_ratings': float(user_rating)})
df = pd.DataFrame(df_list, columns = ['place','title', 'year', 'user_ratings'])
df.style.hide(axis='index')
import numpy as np
import cv2
face_cascade = cv2.CascadeClassifier('E:/DATA
ANALYTICS/IMARTICUS/PGA06/haarcascade_frontalface_default.xml')
eye_cascade = cv2.CascadeClassifier('E:/DATA ANALYTICS/IMARTICUS/PGA06/haarcascade_eye.xml')
img = cv2.imread("E:\\DATA ANALYTICS\\IMARTIC`US\\PGA06\\images\\chiru(1).jpeg")
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, 1.3, 5)
for (x,y,w,h) in faces:
img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
roi_gray = gray[y:y+h, x:x+w]
roi_color = img[y:y+h, x:x+w]
eyes = eye_cascade.detectMultiScale(roi_gray)
for (ex,ey,ew,eh) in eyes:
cv2.rectangle(roi_color,(ex,ey),(ex+ew,ey+eh),(0,255,0),2)
cv2.imshow('img',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
getting the following error while running the code
error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'
How i get resolve the issue
I get a syntax error in the following command of LogisticRegression. Can someone please advise where I might be going wrong here?
from sklearn import linear_model
lm = linear_model.LogisticRegression (C = 1e3)
lm.fit (m[:lags].T, np.sign(m[lags])
LogisticRegression (penalty ='l2', tol = .0001, C = 1000000.0, class_weight = None, dual = False, fit_intercept = True,
intercept_scaling = 1, random_state = None, solver ='liblinear', max_iter = 100, multi_class ='ovr',verbose = 0,
warm_start = False, n_jobs = 1)
Error:
File "<ipython-input-33-529ff9190586>", line 4
LogisticRegression (penalty ='l2', tol = .0001, C = 1000000.0, class_weight = None, dual = False, fit_intercept = True,
^
SyntaxError: invalid syntax
you have missing closing parenthesis here:
lm.fit (m[:lags].T, np.sign(m[lags]) <--
change to
lm.fit (m[:lags].T, np.sign(m[lags]))
3D Perspective should block shelves etc correctly
Sample Image of the ScnView:
Very Simple. Added Scnview. Added Scnnodes ( shapes and lights )
Using standard Omni type light.
Why are the objects in front not blocking the objects behind ?
Here's the CODE:
[self.studioView addSubview:showTimeView];
showTimeView.frame = CGRectMake(self.paperView.frame.origin.x,
self.paperView.frame.origin.y,
self.paperView.frame.size.width,
self.paperView.frame.size.height);
SCNView *sceneView = (SCNView *)showTimeView;
sceneView.backgroundColor = [UIColor whiteColor];
sceneView.scene = [SCNScene scene];
SCNNode *root = sceneView.scene.rootNode;
sceneView.allowsCameraControl = YES;
sceneView.autoenablesDefaultLighting = NO;
// Add Camera
SCNNode *cameraNode = [SCNNode node];
cameraNode.camera = [SCNCamera camera];
cameraNode.position = SCNVector3Make(0, 0, 100);
cameraNode.eulerAngles = SCNVector3Make(0, -M_PI/8, 0);
cameraNode.camera.zNear = 0;
cameraNode.camera.zFar = thisModuleDepth;
cameraNode.camera.xFov = thisWallWidth;
cameraNode.camera.yFov = thisModuleHeight;
[root addChildNode:cameraNode];
// Add Cabinet Piece
SCNBox *cubeGeom = [SCNBox boxWithWidth:tW
height:tH
length:tD
chamferRadius:0.0];
SCNNode *cubeNode = [SCNNode nodeWithGeometry:cubeGeom];
cubeNode.position = SCNVector3Make(tX, tY, tZ);
// Tag Material
SCNMaterial *material = [SCNMaterial material];
material.diffuse.contents = [UIImage imageNamed:thisColor];
[material.diffuse.contents setAccessibilityIdentifier:thisColor] ;
[material.diffuse.contents setAccessibilityLabel:thisID] ;
cubeNode.geometry.firstMaterial = material;
cubeNode.geometry.firstMaterial.locksAmbientWithDiffuse = NO;
cubeNode.physicsBody = [SCNPhysicsBody staticBody];
[root addChildNode:cubeNode];
// Add spotlight
SCNLight *spotLight = [SCNLight light];
spotLight.type = SCNLightTypeOmni;
spotLight.color = [UIColor whiteColor];
SCNNode *spotLightNode = [SCNNode node];
spotLightNode.light = spotLight;
spotLightNode.position = SCNVector3Make(thisWallWidth / 2 ,thisModuleHeight, thisModuleDepth *2);
spotLightNode.light.intensity = 1000;
[root addChildNode:spotLightNode];
Thanks Noah,
I finally figured out what was wrong!!!
Set the automaticallyAdjustsZRange property of your SCNCamera to true and it will ensure that nothing is clipped because of the wrong zNear or zFar being set.
THANKS FOR YOUR HELP !!!
HERE IT IS FIXED: Perfect 3D Perspective