Hi @rashantha,
You could use two actions to retrieve the file content. The first is a Send an HTTP request to SharePoint action to retrieve the image column and it's properties (one of them is the serverrelativeurl to the uploaded file). In the second HTTP request you can retrieve the encoded file content.
Below is an example of that approach.
In this example the Image column is called ImageTypeColumn
1. Uri first HTTP request
_api/web/lists/getbytitle('ChatGPT example')/items(1)?$select=ImageTypeColumn
2. Headers first HTTP request
{
"Accept": "application/json;odata=nometadata",
"Content-Type": "application/json;odata=nometadata"
}
3. Uri second HTTP request
_api/web/getfilebyserverrelativeurl('@{json(outputs('Send_an_HTTP_request_to_SharePoint')?['body']['ImageTypeColumn'])['serverRelativeUrl']}')/$value
