Cassava Leaf Disease Detection

Problem Statement

We would implement a Cassava Leaf Disease detection system. Cassava is a rich, affordable source of carbohydrates. It can provide more calories per acre of the crop than cereal grain crops, which makes it a very useful crop in developing nations.

As the 2nd largest provider of carbohydrates in Africa, cassava is a key food security crop grown by small-holder farmers because it can withstand harsh conditions. At least 80% of small-holder farmer households in Sub-Saharan Africa grow cassava and viral diseases are major sources of poor yields.

We have taken 105 images for 4 leaf disease categories and a healthy category. Therefore, we have 5 categories of leaves.
The Cassava Leaf Disease detection system would help the farmers to detect the disease correctly and take preventive measures for the same.

Images of the Cassava Disease Detection Application

The images are in the docs\images\ContainerApp\ folder

FileName	Description
Predict.png	Prediction UI - Cassava Application
PredictionResult.png	Prediction Result - Cassava Application
AllPredictions.png	All Predictions - Cassava Application
FilterPredictions.png	Search Predictions by Filename - Cassava Application

Deployment Instructions [ Steps ]

1. Create the Custom Vision AI project for training the Cassava Leaf images
2. Steps for building the Docker Image [ docs/01-DockerSteps.md ]
3. Steps for deploying the image as a Container App in Azure [ docs/2-AzureContainerAppsSteps.md ]
4. Turn the Managed identity [System Assigned] for the deployed Container App[ docs\images\ContainerApp\SystemIdentitySetting.png ]
5. Create the Storage Account and the Container [ docs\images\StorageAccount\StorageAccount.png]
6. Create the CosmosDB account , database and container. The partition of the container is category [Section : Images of the Cosmos DB]
7. Assign Storage Data Blob Contributor Role to the Container App for the Storage Account so that the Container App can read,write and delete the images in the Storage Account [ docs\images\ContainerApp\StorageBlobDataContributorRole.png ]
8. Assign Access Policies for the Container App so that the Container App can acess the secrets in the KeyVault[ docs\images\ContainerApp\KeyVaultAccess.png ]
9. Create the secrets in the KeyVault[ docs\images\KeyVault\KVSecrets.png]
10. Configure Continuous Deployment for the Container App[ docs\images\KeyVault\KVSecrets.png]

Images of the Azure Container App

The images are in the docs\images\ContainerApp\ folder

Category	FileName	Description
Managed Identity	SystemIdentitySetting.png	Images of the System identity configuration of the Container App which is turned ON
Storage account Access	StorageBlobDataContributorRole.png	Images of the Storage Account - Storage Data Blob Contributor Role
KeyVault Access	KeyVaultAccess.png	Key Vault - Access Polices to acess the Key Vault Secrets
RevisionManagement - Container App	RevisionManagement.png	Revision Management Settings - Container App
Scale - Container App	Scale.png	Scale Settings - Container App
Secrets - Container App	Secrets.png	Secrets Settings - Container App. The KeyVault Name is stored as a Secret
Continuous Deployment - Container App	CD.png	Continuous Deployment Settings - Container App.

Images of the Key Vault Secrets

Category	FileName	Description
Key Vault Secrets	docs\images\KeyVault\KVSecrets.png	Images of the Key Vault Secrets

Images of the Storage Account

Category	FileName	Description
Storage Account	docs\images\StorageAccount\StorageAccount.png	Images of the Storage Account

Images of the Cosmos DB

Category	FileName	Description
Database and Container	docs\images\CosmosDB\cosmos-db-container.png	Images of Database and Container of Cosmos DB
Partition	cosmos-db-container.png	Images of Cosmos DB container

Files

FileName	Description
Dockerfile	Docker file for the Container Image
requirements.txt	Has the dependencies required for the Container Image
app.py	Has the code for running the Flask app
flaskr / cosmosdbwithoutasync.py	Has the code for connecting the Container App with CosmosDB
flaskr / kvutils.py	Has the code for reading the secrets from the KeyVault by the Container App
flaskr / predictions.py	Has the code for getting the predictions for the Cassava Leaf by the Container App
flaskr / init.py	Has the code for initialization for the Flask App
flaskr / templates folder	Folder containing the Views of the Container App
flaskr / static folder	Folder containing the CSS file