Design
Apply linear transformation (a * input + b) to adjust image levels, brightness, and contrast
Call this tool from your code in three languages.
# 1) Upload each file first → returns { filePath }
curl -X POST 'https://api.elysiatools.com/upload/image-linear' \
-F 'file=@/path/to/imageFile.ext'
# 2) Call the tool with the returned filePath values
curl -X POST 'https://api.elysiatools.com/en/api/tools/image-linear' \
-F 'imageFile=/path/to/file.ext' \
-F 'multiplier=1' \
-F 'offset=0' \
-F 'channels=all' \
-F 'format=original' \
-F 'quality=95'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/image-linear| Name | Type | Required | Description |
|---|---|---|---|
| imageFile | fileupload required | Yes | Upload any image file to apply linear transformation |
| multiplier | text | No | Multiplier value (a). Can be single number for all channels or comma-separated values for each channel. Formula: result = a * input + b |
| offset | text | No | Offset value (b). Can be single number for all channels or comma-separated values for each channel. Formula: result = a * input + b |
| channels | select | No | Apply transformation to specific channels or all channels |
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-image-linear": {
"name": "image-linear",
"description": "Apply linear transformation (a * input + b) to adjust image levels, brightness, and contrast",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=image-linear",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "image-linear",
"arguments": {
"imageFile": "https://example.com/file.ext",
"multiplier": "1",
"offset": "0",
"channels": "all",
"format": "original",
"quality": 95
}
}
}| format | select | No | Choose output format or keep original |
| quality | number | No | Output quality for lossy formats |
File result
{
"filePath": "/public/processing/randomid.ext",
"fileName": "output.ext",
"contentType": "application/octet-stream",
"size": 1024,
"metadata": {
"key": "value"
},
"error": "Error message (optional)",
"message": "Notification message (optional)"
}Questions or issues? Contact [email protected]