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Image Classification using Convolutional Neural Networks in PyTorch

import os
import torch
import torchvision
import tarfile
import torch.nn as nn
import numpy as np
import torch.nn.functional as F
from torchvision.datasets.utils import download_url
from torchvision.datasets import ImageFolder
from torch.utils.data import DataLoader
import torchvision.transforms as tt
from torch.utils.data import random_split
from torchvision.utils import make_grid
import matplotlib.pyplot as plt
%matplotlib inline
!pip install jovian
import jovian
Collecting jovian Downloading jovian-0.2.15-py2.py3-none-any.whl (94 kB) |████████████████████████████████| 94 kB 1.5 MB/s eta 0:00:011 Requirement already satisfied: requests in /opt/conda/lib/python3.7/site-packages (from jovian) (2.23.0) Requirement already satisfied: click in /opt/conda/lib/python3.7/site-packages (from jovian) (7.1.1) Requirement already satisfied: pyyaml in /opt/conda/lib/python3.7/site-packages (from jovian) (5.3.1) Collecting uuid Downloading uuid-1.30.tar.gz (5.8 kB) Requirement already satisfied: certifi>=2017.4.17 in /opt/conda/lib/python3.7/site-packages (from requests->jovian) (2020.4.5.2) Requirement already satisfied: idna<3,>=2.5 in /opt/conda/lib/python3.7/site-packages (from requests->jovian) (2.9) Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in /opt/conda/lib/python3.7/site-packages (from requests->jovian) (1.24.3) Requirement already satisfied: chardet<4,>=3.0.2 in /opt/conda/lib/python3.7/site-packages (from requests->jovian) (3.0.4) Building wheels for collected packages: uuid Building wheel for uuid (setup.py) ... done Created wheel for uuid: filename=uuid-1.30-py3-none-any.whl size=6500 sha256=2a87331f74f571a81ce2319496432d0c9fbcd67e024aae5cf4d82188c8e36137 Stored in directory: /root/.cache/pip/wheels/2a/ea/87/dd57f1ecb4f0752f3e1dbf958ebf8b36d920d190425bcdc24d Successfully built uuid Installing collected packages: uuid, jovian Successfully installed jovian-0.2.15 uuid-1.30
import torchvision.models as models
project_name='chappo flowers'

Exploring the Data

We'll download the images in PNG format from this page, using some helper functions from the torchvision and tarfile packages.