Tensorflow

TensorFlow is an open source library that was created by Google. It is used to design, build, and train deep learning models.

GitHub: https://github.com/topics/tensorflow
Wikipedia: https://en.wikipedia.org/wiki/TensorFlow
Repo: https://github.com/tensorflow
Created by: Google Brain Team
Released: November 9, 2015
Aliases: tensorflow-tutorials, tensorflow-experiments, tensorflow-models, tensorflow-examples, tensorflow-1-0, tensorflow-tutorial,
Last updated: 2026-07-07 00:27:56 UTC
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https://github.com/gdapriana/diadetect

Machine learning program, to detect diabetes using classification algorithm, Neural Network

nextjs tensorflow

Last synced: 14 Aug 2025

https://github.com/fengyh3/text-classification

Deep Learning for Text Classification in NLP

tensorflow text-classification

Last synced: 04 May 2026

https://github.com/prouast/video-sensor-processing

Import and processing of video sensor data for intake gesture recognition. Support for OREBA dataset.

intake-gesture-detection opencv oreba-dataset tensorflow tfrecord video

Last synced: 17 Aug 2025

https://github.com/maxpaynestory/pakistan-nic-detector-tensorflow

Python script with trained model to detect Pakistani National Identity Card from webcam using Tensorflow and OpenCV

computervision machine-learning object-detection opencv ssd-mobilenet tensorflow tensorflow-models

Last synced: 01 Aug 2025

https://github.com/koji/ictrainer

image classifier train program

cli image-classification keras machine-learning pypi-packages python tensorflow tool

Last synced: 16 Aug 2025

https://github.com/dataxujing/ssd-tensorflow

:art::art::art: SSD-Tensorflow目标检测基于医学影像的消化内镜活检钳

cv detection python3 ssd tensorflow

Last synced: 16 Aug 2025

https://github.com/sunsided/tensorflow-scaffold

An attempt on creating a best practices TensorFlow project.

artificial-intelligence python tensorflow work-in-progress

Last synced: 26 Jul 2025

https://github.com/1ambda/jupyter-playground

Jupyter Notebooks for Data Exploit 🙂

jupyter keras notebook tensorflow text-analysis

Last synced: 12 May 2025

https://github.com/voltsygm/openvoice

🔊 Clone voices accurately while controlling style and tone in multiple languages seamlessly with OpenVoice.

audio-generation conversational-ai converter docker generative-ai generator onnxruntime openai-api openvoiceos rvc-voices styletts2 tensorflow tortoise-tts tts voice-cloning voice-conversion voice-conversion-gan zero-shot-tts

Last synced: 12 May 2026

https://github.com/chinaskidev/ml-prediccion-lluvia-brazil

MLOps, usando Docker,Airflow,tensorflow,streamlit

python3 scikit-learn streamlit tensorflow

Last synced: 22 Apr 2025

https://github.com/will-rice/conformer-ctc

TensorFlow 2.0 Implementation of Conformer CTC

asr speech-recognition speech-to-text tensorflow

Last synced: 20 Sep 2025

https://github.com/prithvi45/conversational-chatbot

Chatbot built by using Deep Neural Networks and TensorFlow

deep-neural-networks python3 tensorflow

Last synced: 12 May 2025

https://github.com/damienpontifex/mobilenet-classifier-transfer

Train a binary classifier from mobilenet

classification computer-vision keras mobilenet tensorflow tensorflow-serving

Last synced: 14 Apr 2025

https://github.com/salamanderxing/mate

🧉 the ultimate deep learning project management and sharing tool

deep-learning deep-neural-networks deeplearning jax machine-learning project-template pytorch pytorch-lightning reproducibility research tensorflow

Last synced: 05 Nov 2025

https://github.com/si-cim/protoflow

ProtoFlow is a TensorFlow-based Python toolbox for bleeding-edge research in prototype-based machine learning algorithms.

lvq machine-learning-algorithms python-toolbox tensorflow

Last synced: 13 Apr 2025

https://github.com/ely-s/efficientdetjs

Port of the EfficientDet neural network architecture to the web.

ai cv tensorflow

Last synced: 13 Apr 2025

https://github.com/hadim/fiji_maskrcnn

PROJECT MOVED TO https://github.com/hadim/maskflow-fiji

fiji imagej imaging microsopy neural-network segmentation semantic-segmentation tensorflow

Last synced: 04 Apr 2025

https://github.com/arafat-hasan/dhaka-ai

My solution for Dhaka Ai Traffic Detection Challenge.

classification deeplearning detection machine-learning tensorflow

Last synced: 19 May 2026

https://github.com/bbc/cnn-rate-distortion

CNN for rate-distortion estimation

cnn distortion python3 rate tensorflow video-coding

Last synced: 06 Apr 2025

https://github.com/nitishnb/greenkey

android-app dart flutter tensorflow tflite

Last synced: 06 May 2026

https://github.com/botic/sharedmobility-ai

Removes customer frustration from shared mobility services. Supported by Netidee Call 13.

data-driven mobility netidee nodejs tensorflow tensorflowjs vuejs

Last synced: 29 Jul 2025

https://github.com/kanishknavale/dqn-duelingdqn

Tensorflow based DQN and PyTorch based DDQN Agent for 'MountainCar-v0' openai-gym environment.

ddqn-pyotrch deep-learning deep-q-learning-network deep-qlearning-algorithm deep-residual-learning dqn-tensorflow mountaincar-v0 openai-gym-environment pytorch reinforcement-learning tensorflow

Last synced: 17 Sep 2025

https://github.com/jonasrauber/foolbox-tensorflow-keras-applications

The pretrained TensorFlow Keras models with a Foolbox Zoo compatible interface

adversarial-attacks foolbox imagenet keras pretrained-models tensorflow

Last synced: 16 Aug 2025

https://github.com/lc0/practical-ml-dahoam

machine-learning tensorflow tutorials

Last synced: 29 Jul 2025

https://github.com/bastiaanv/yolov2-tiny-tf-ncs

Yolov2-tiny Tensorflow implementation for Movidius Neural Compute Stick

ncsdk python3 tensorflow

Last synced: 21 Jul 2025

https://github.com/mysterionrise/tensorflow-metal-experiments

Example of training NN based on Tensorflow Metal using ARM M chips from Apple

gpu m1 m1-mac m2 m2-mac m3-mac neural-network neural-networks tensorflow tensorflow-gpu tensorflow-tutorials

Last synced: 19 May 2026

https://github.com/ltriess/pointnet2_keras

:sparkles: PointNet++ feature extractor and output heads implemented in TensorFlow 1.15 with Keras Models

keras-tensorflow pointnet2 python3 tensorflow

Last synced: 06 Apr 2025

https://github.com/radanalyticsio/tensorflow-serving-s2i

S2I image is for running tensorflow model server on Openshift.

openshift s2i tensorflow

Last synced: 06 Apr 2025

https://github.com/gbaeke/nasnet-go

Web app to classify images with nasnetmobile

ai go golang ml nasnet tensorflow

Last synced: 30 Aug 2025

https://github.com/qdraw/theiacore

How to see sharper with Tensorflow

asp-net-core tensorflow tensorflow-tutorials

Last synced: 16 Apr 2025

https://github.com/tspannhw/yolo3-keras-tensorflow

A tweak to https://github.com/qqwweee/keras-yolo3 to store images and json attributes

apache-nifi keras nifi osx python tensorflow yolov3

Last synced: 14 Jul 2025

https://github.com/imvision12/convnext-tf

A Tensorflow Implementation of "A ConvNet for the 2020s" and "ConvNeXt V2: Co-designing and Scaling ConvNets with Masked Autoencoders" (ConvNeXt and ConvNeXtV2)

cnn convnext convnextv2 tensorflow

Last synced: 22 Sep 2025

https://github.com/codeperfectplus/intel_image_classification

Intel Image classification using CustomDataLoader and Tensorflow training loop with cutsom model evalution function to understand what's going behind

classification convolutional-neural-networks deep-learning image-classification pytorch tensorflow

Last synced: 31 Aug 2025

https://github.com/maxim5/tensorflow-seq2seq-translate

Sequence-to-Sequence Translation Model compatible with latest Tensorflow version

deep-learning machine-learning machine-translation neural-machine-translation neural-network sequence-to-sequence tensorflow

Last synced: 06 Apr 2025

https://github.com/sayannath/sayannath

Bio

android-developement codechef-kiit-chapter data-scientist deep-learning gsoc-2021 machine-learning president sayan sayan-nath tensorflow

Last synced: 12 Sep 2025

https://github.com/farahibrar/programming-in-python

Explore a comprehensive collection of Python programming for diverse data analysis and data science projects. This repository covers data exploration, visualization, statistical analysis, machine learning, NLP, and model deployment. Perfect for enthusiasts looking to delve into practical examples and advanced techniques.

beautifulsoup dataanalysis docker flask folium jupyter-notebook machine-learning matplotlib nltk numpy pandas python pytorch scikit-learn scikitlearn scipy seaborn spacy statsmodels tensorflow

Last synced: 16 Jul 2025

https://github.com/joseprsm/gutenberg

🪶 GPT-3 based tool to generate short copy

fastapi gpt-3 tensorflow

Last synced: 11 Mar 2026

https://github.com/f33rni/petalflow

A pure C light-weight library for machine learning

ai alternative amd arduino arm artificial-intelligence avr c esp32 machine-learning ml neural-network neural-networks stm32 tensorflow x86-64

Last synced: 23 Jul 2025

https://github.com/galeone/galeone.github.io

blog computer-vision deep-learning tensorflow

Last synced: 12 May 2025

https://github.com/ninpnin/probabilistic-word-embeddings

Train and evaluate probabilistic word embeddings with Python.

probabilistic-modeling tensorflow word-embeddings

Last synced: 12 May 2025

https://github.com/pxlairobotics/anr_ml_docker

This repository contains the necessary elements (code and artifacts) to build a Machine Learning container suitable to execute all the ML exercises of the AnR course.

fastai-v07 flask juypter keras machine-learning ml numpy pandas scikit-learn scipy tensorflow

Last synced: 30 Mar 2025

https://github.com/sudo-rushil/dga-intel-web

This deep learning model uses a CNN-LSTM architecture to predict whether a given domain name is genuine or was artificially generated by a DGA.

cnn deep-learning keras lstm lstm-cnn machine-learning tensorflow

Last synced: 13 May 2025

https://github.com/klus3kk/microsociety

An object-oriented project that represents the simulator of the society with dynamically changing events.

2d ai cpp deep-q-learning machine-learning oop python reinforcement-learning sfml simulation tensorflow

Last synced: 10 Apr 2026

https://github.com/luca-parisi/m_arcsinh

m-arcsinh: A Reliable and Efficient Function for Supervised Machine Learning (scikit-learn, TensorFlow, and Keras) and Feature Extraction (scikit-learn)

activation activation-function activation-functions activations arcsinh classification dimensionality-reduction feature-extraction keras keras-tensorflow machine-learning machinelearning mlp mlp-classifier neural-network python scikit-learn svm svm-classifier tensorflow

Last synced: 28 Jun 2025

https://github.com/carloalbertobarbano/tf_monalisagenerator

Neural Network (based on TensorFlow) learning to generate an image of Monalisa

art artificial-intelligence machine-learning neural-network python tensorflow

Last synced: 24 Jun 2025

https://github.com/evanhalley/puppyteer-crawler

Crawls a website for pictures of big dogs, little dogs, red dogs, blue dogs, yellow dogs, green dogs, black dogs, and white dogs!

javascript nodejs puppeteer tensorflow

Last synced: 30 Jul 2025

https://github.com/nikhilroxtomar/multiclass-image-segmentation-using-unetr-in-tensorflow

Multiclass Image Segmentation on Human Face Segmentation in TensorFlow

multiclass-segmentation tensorflow unet unet-transformer unetr unetr-segmentation

Last synced: 31 Jul 2025

https://github.com/sqmah/art-style-transfer-video

Art style transfer for both images and video written in Tensorflow 2. Preview and save your outputs.

gan style-transfer tensorflow tensorflow-examples tensorflow2

Last synced: 20 Sep 2025

https://github.com/huangcongqing/tensorflow-minist

TensorFlow与Flask结合打造手写体数字识别 | 学习网站：

flask minist tensorflow

Last synced: 20 Mar 2025

https://github.com/aveek-saha/graph-attention-net

A TensorFlow 2 implementation of Graph Attention Networks (GAT)

gat graph-attention-networks graph-neural-networks graphs tensorflow tensorflow2

Last synced: 19 May 2026

https://github.com/kazuhito00/hand-detection-3class-mobilenetv2-ssdlite

MobilenetV2-SSDLiteで訓練した手検出(Open/Close/Pointer)のモデルです。

hand-detection mobilenetv2-ssdlite object-detection opencv tensorflow

Last synced: 15 Jul 2025

https://github.com/labgua/aisearchimage

Intelligent Search Engine Of Services Image-Based

cnn convolutional-neural-networks flask image-based intelligent mechanicalsoup object-recognition opencv scraping search-engine services tensorflow wordnet

Last synced: 07 May 2026

https://github.com/pavanvaranasi02/virtual-air-writing-and-mouse

Introducing an innovative virtual air mouse system for seamless computer interaction. Users control devices with hand gestures, while advanced features include air writing, text-to-speech, and easy text saving. Our project enhances usability, efficiency, and the digital experience.

mediapipe opencv-python pyautogui python3 scikit-learn tensorflow

Last synced: 12 Apr 2025

https://github.com/yasinshafiei/textsummarization

Text summarization using Seq2Seq model with TensorFlow

artificial-intelligence deeplearning lstm lstm-neural-networks machine-learning neural-network nlp python python3 seq2seq tensorflow text-summarization

Last synced: 22 Jul 2025

https://github.com/accraze/afx_rnn

Neural Net trained on Aphex Twin songs :robot: :notes:

deep-learning magenta midi music-generation neural-network tensorflow

Last synced: 29 Apr 2025

https://github.com/yhwang/im2txt-inference

Run im2txt trained model in inference mode

flask image2text inference-mode python show-and-tell tensorflow

Last synced: 06 Aug 2025

https://github.com/vekeryk/media-filter-bot

Telegram media filter bot that can detect nsfw content using Keras model predictions

bot keras nsfw-filter nsfw-recognition telegram-bot tensorflow

Last synced: 27 Jul 2025

https://github.com/sanchitvj/kaggle-competitions

Code used to get into TOP 4% position in the leaderboard of Kaggle competitions.

computer-vision deep-learning image-classification kaggle-competition kaggle-dataset pytorch tensorflow

Last synced: 08 Aug 2025

https://github.com/mariogeiger/lensfinder-euclid

Binary classifier with convolutional neural network

astrophysics neural-network python-3 tensorflow

Last synced: 24 Aug 2025

https://github.com/daniel-lima-lopez/dynamic-state-traffic-lights

This work consists of a dynamic state traffic light controlled by a neural network. The training of this model is carried out by genetic algorithms in a simulation environment.

deep-learning genetic-algorithm genetic-algorithms neural-networks python sumo tensorflow trafic-light

Last synced: 12 May 2025

https://github.com/psnappz/viserion377

AI Brain VISERION377 [In Development]

ai deeplearning tensorflow viserion377

Last synced: 16 Apr 2026

https://github.com/rik-sarkar-07/codes

This is My Main Repository

algorithms-and-data-structures c cnn cpp deep-learning java keras machine-learning nuralnetwork py tensorflow

Last synced: 03 Oct 2025

https://github.com/zackakil/ah-um-like-so-cool-detector

Real-time voice recognition app to help speakers reduce their use of "filler words".

machine-learning techable-machine tensor tensorflow voice-recognition vue

Last synced: 06 May 2026

https://github.com/ytakzk/mnist-dcgan-for-tensorflow

Simple DCGAN model for Tensorflow

cnn dcgan deep-learning gan machine-learning ml neural-network tensorflow

Last synced: 12 Apr 2025

https://github.com/tanyachutani/xception-tf2.0

A TensorFlow2.0 implementation of Xception Deep Learning with Depthwise Separable Convolutions

depthwise-separable-convolutions imagenet keras tensorflow tf2 xception

Last synced: 10 Sep 2025

https://github.com/kozistr/radam-tensorflow

On The Variance Of The Adaptive Learning Rate And Beyond in tensorflow

mnist optimizer radam tensorflow

Last synced: 20 Jul 2025

https://github.com/gojibjib/jibjib-query

Query service to serve the JibJib TensorFlow model

audioset docker flask grpc grpc-python machine-learning-api protobuf python rest-api tensorflow tensorflow-serving vggish

Last synced: 16 Jul 2025

https://github.com/jparedesds/ai-yolo

AI-YOLO Project Object Detection / Computer Vision

computer-vision model object-detection opencv tensorflow torch track-detection ultralytics yolo yolo11 yolov10 yolov9

Last synced: 02 Apr 2025

https://github.com/theengineerprogrammer/my_masters_thesis

cVAE, VQ-VAE, VQ-VAE2, cVAE-cGAN, PixelCNN and Gated PixelCNN in tensorflow 2.x and keras

cvae deep-learning gan gated-pixelcnn machine-learning pixelcnn tensorflow vae vae-gan vq-vae vq-vae-2

Last synced: 09 Jul 2025

https://github.com/m-bkh-t/deep-learning-course

In this learning path, you will be able to learn the basic concepts of Deep Leaning and TensorFlow

jupyter-notebook python3 tensorflow

Last synced: 16 Jun 2025

https://github.com/silvermete0r/redeepfake-demo-app

ReDeepFake Demo App - Advanced Deepfake detection model for 2D flat images.

cnn deep-learning deepfake-detection deepfakes efficientnet neural-network tensorflow

Last synced: 30 Apr 2025

https://github.com/martinn25/bsternaichain

An innovative platform combining Blockchain and AI for transparent and secure transactions.

ai blockchain crypto ethereum graphql machine-learning nextjs nodejs opensource reactjs risk-management rust smart-contracts solidity tensorflow web3

Last synced: 10 Sep 2025

https://github.com/kozistr/movie-rate-prediction

Movie Rate Prediction with Tensorflow

char2vec doc2vec gensim korean-nlp mecab-ko movie-review-classifier naver soynlp tensorflow text-classification textcnn textrnn word2vec

Last synced: 20 Jul 2025

https://github.com/srikanth284/facesimilarity-check

FaceSim Check harnesses advanced AI algorithms to compare and analyze facial similarities with precision. Effortlessly upload and evaluate faces in a user-friendly interface.

face-recognition matplotlib numpy opencv2 python streamlit tensorflow

Last synced: 13 Apr 2025

https://github.com/avidlearnerinprogress/tensorflow-basics

101's regarding Tensorflow

convolutional-neural-networks deep-learning keras mnist tensorflow

Last synced: 10 Apr 2025

https://github.com/vishal815/customer-churn-prediction-using-artificial-neural-network

This project involves building an Artificial Neural Network (ANN) for predicting customer churn. The dataset used contains various customer attributes, and the ANN is trained to predict whether a customer is likely to leave the bank.

accuracy activation-functions binary-crossentropy churn-prediction classification dataset deep-learning keras keras-tensorflow machine-learning nuralnetwork optimizer tensorflow vishal-lazrus vishallazrus

Last synced: 12 Apr 2025

https://github.com/sergio11/online_payment_fraud

Fraud detection using Deep Neural Networks to predict fraudulent transactions in financial data. 🚨🤖 Complete process from EDA and data preprocessing to model training and evaluation. 📊🔍

classification data-preprocessing data-science deep-neural-networks dnn exploratory-data-analysis financial-fraud fraud-detection fraud-detection-model imbalanced-data keras machine-learning neural-network python smote tensorflow

Last synced: 17 Aug 2025

https://github.com/Lyra-AI-Team/ServeSmart

ServeSmart focuses on reducing food waste

aritificial-intelligence css html javascript jupyter-notebook keras python tensorflow

Last synced: 09 Jul 2025

https://github.com/animikhaich/deep-convolutional-background-subtractor

End-to-end CNN-based Autoencoder that can segment any objects even if it is out of the classes present in the training set.

background-subtraction cnn cnn-keras coco convolutional-neural-networks foreground-segmentation image-segmentation python segmentation tensorflow unseen-background-subtractor

Last synced: 10 Apr 2025

https://github.com/benjs/hourglass_networks

tf.keras implementation of "Toward fast and accurate human pose estimation via soft-gated skip connections" by Bulat et al. and "Stacked Hourglass Networks for Human Pose Estimation" by Newell et al.

bulat hourglass-network human-pose-estimation keras newell soft-gated-skip-connections stacked-hourglass-networks tensorflow

Last synced: 07 May 2025

https://github.com/frozenwolf-cyber/sih

I-Pravesh is a Smart Attendance Android App which uses a combination of edge face detection and recognition (MobileFaceNet + TensorFlow Lite) as the authentication biometric for recording attendance

android fastapi postgresql tensorflow tensorflow-lite

Last synced: 06 May 2025

https://github.com/raj-pulapakura/dino-game-controlled-by-gesture-detection

The classic dino game, except its controlled by your hand! Powered by TensorFlow, OpenCV and PyGame.

computer-vision deep-learning dinosaur-game game-development gesture-recognition object-detection opencv pygame python tensorflow

Last synced: 15 Jul 2025

https://github.com/bsantanna/iban-validator-model

A Machine Learning Artificial Neural Network Model for validating IBAN account numbers.

banking deep-learning docker grpc iban iban-validator java keras keras-tensorflow machine-learning neural-network python rest-api service tabular-data tensorflow validation

Last synced: 11 Apr 2025

https://github.com/muhammedbuyukkinaci/my-jupyter-files

This repository is containing my Jupyter files.

binary-classification binary-image-classification dcgan dcgan-tensorflow deep-learning ipython-notebook jupyter-notebook multiclass-classification multiclass-image-classification neural-style-transfer neural-style-transfer-tensorflow tensorflow tensorflow-text-generator text-generation

Last synced: 26 Mar 2025

https://github.com/nishantksingh0/cnn-rice-classification

Classified wide variety of rices by training model on CNN. ( Arborio, Basmati, Ipsala, Jasmine, Karacadag )

kaggle matplotlib numpy pandas tensorflow

Last synced: 30 Jun 2026

https://github.com/kyegomez/ast

Implementation of AST from the paper: "AST: Audio Spectrogram Transformer' in PyTorch and Zeta

ai artificial-intelligence attention machine machine-learning machine-learning-algorithms pytorch pytorch-implementation tensorflow

Last synced: 07 May 2025

https://github.com/animikhaich/vggnet-tensorflow

VGGNet-Family (11, 13, 16 & 19) Implementation to train on ImageNet 2012 using Tensorflow 2.x

cnn imagenet implementation-of-research-paper python tensorflow tensorflow-datasets vgg vgg16 vgg19

Last synced: 10 Apr 2025

https://github.com/fabiangroeger96/semantic-segmentation-dtd

Semantic Segmentation for the Describable Textures Dataset (DTD)

dtd dtd-dataset resnest resnet semantic-segmentation tensorflow unet

Last synced: 01 Jul 2026

https://github.com/rijoslal/look

Look is a powerful ML tool that upscale satellite images generated using ESRGAN built with TensorFlow Keras & Fastapi. It ensures high-quality scaling, preserving details and consistency, making images ready for further use or visualization. Ideal for enhancing images while maintaining precision

bootstrap5 cv2 fastapi html-css-javascript jinja2-templates python3 tensorflow tensorflow-hub

Last synced: 12 Apr 2025

https://github.com/chameleon-ai/deepdream-revived

A version of DeepDream that works in modern-day python

img2img tensorflow

Last synced: 14 May 2026

https://github.com/siddhesh-agarwal/skin-cancer-detection

A web app to detect Skin cancer using pictures of moles and other marks on skin

cnn healthcare python skin-cancer skin-cancer-detection streamlit tensorflow

Last synced: 03 Mar 2025

https://github.com/rexwangcc/joyful-deep-leaning-i

My useful resources of Deep Learning in Tensorflow

cnn deep-learning mlp neural-network rnn tensorflow

Last synced: 11 Apr 2025

https://github.com/miladsade96/diagtomodel

Implementations of Artificial Neural Networks Based on their Diagrams

artificial-intelligence cnn computer-vision convolutional-neural-networks deep-learning deep-neural-networks hacktoberfest2021 keras machine-learning models neural-network python tensorflow

Last synced: 08 Jul 2025

https://github.com/johnpertoft/relation-networks

Tensorflow implementation of Relation Networks

relation-network relation-networks tensorflow

Last synced: 17 May 2026

https://github.com/briancheang/dr-seuss

Char-RNN generated Dr. Seuss

char-rnn lstm rnn rnn-model rnn-tensorflow tensorflow text-generation word-level-lstm

Last synced: 09 May 2025

https://github.com/abhiramdodda/skindiseasedetection

Skin diseases can be detected and classified through Deep Learning techniques. In this project Deep CNN network is built on top of EfficientNetB3 for image classification.

cnn efficientnetb3 image-classification image-processing keras matplotlib python3 sampling-methods tensorflow