{% extends "introduction/base.html" %}
{% load static %}
{% block content %}
{% block title %}
A9
{% endblock %}
In this page you can upload a image and apply different math equation on it's rgb layer
Varriable reffernence
img --> actual image file | r --> red chennel | g --> green chennel
b --> blue chennel | g --> green chennel
Some Example
- convert(r, '1')
- convert(r+g+b, 'L')
- convert(r-g, '1')
{% if success %}
{% endif %}
This lab uses pillow==8.0.0 package, google for vulnerability
def a9_lab2(request):
if not request.user.is_authenticated:
return redirect('login')
if request.method == "GET":
return render (request,"Lab/A9/a9_lab2.html")
elif request.method == "POST":
try :
file=request.FILES["file"]
function_str = request.POST.get("function")
img = Image.open(file)
img = img.convert("RGB")
r,g,b = img.split()
output = ImageMath.eval(function_str,img = img, b=b, r=r, g=g)
# saving the image
buffered = BytesIO()
output.save(buffered, format="JPEG")
img_str = base64.b64encode(buffered.getvalue()).decode("utf-8")
bufferd_ref = BytesIO()
img.save(bufferd_ref, format="JPEG")
img_str_ref = base64.b64encode(bufferd_ref.getvalue()).decode("utf-8")
try :
return render(request,"Lab/A9/a9_lab2.html",{"img_str": img_str,"img_str_ref":img_str_ref, "success": True})
except Exception as e:
print(e)
return render(request, "Lab/A9/a9_lab2.html", {"data": "Error", "error": True})
except Exception as e:
print(e)
return render(request, "Lab/A9/a9_lab2.html", {"data":"Please Upload a file", "error":True})
{% endblock %}
