AI Image Generation
This skill guides you on how to generate and edit images using the AI image generation service, helping users create high-quality product images, modify existing images, and perform creative visual transformations.
Core Concepts
The AI Image Generation tool produces new images based on a text prompt and optional reference images. It supports a wide range of use cases:
- Text-to-image: Generate a brand-new image purely from a text description.
- Image-to-image: Provide one or more reference images and a prompt to generate a new image that preserves elements from the references.
- Image editing: Modify specific elements, colors, backgrounds, or styles in an existing image.
- Product compositing: Place a product from one image into a scene from another image.
- Model swapping: Replace the model or mannequin in a product photo.
Reference images are strongly recommended when the user wants the output to closely resemble an existing product or scene. Up to 3 reference image URLs can be provided, separated by commas.
Parameter Guide
| Parameter |
Required |
Description |
Default |
| prompt |
Yes |
Text description of the desired image. Supports text-to-image, image-to-image, editing, model swapping, and more. Max 1000 characters. |
-- |
| referenceImageUrl |
No |
URL(s) of reference image(s). Separate multiple URLs with commas. Up to 3 images supported. Max 1000 characters. |
-- |
| aspectRatio |
No |
Aspect ratio of the output image. |
1:1 |
Supported Aspect Ratios
| Value |
Description |
| 1:1 |
Square (default) |
| 3:4 |
Portrait |
| 4:3 |
Landscape |
| 9:16 |
Vertical fullscreen |
| 16:9 |
Horizontal fullscreen |
Prompt Writing Tips
- Be specific and descriptive: Clearly describe the subject, scene, lighting, style, and mood you want.
- Reference images by number: When using reference images, refer to them as "image 1," "image 2," etc., in the order they appear in
referenceImageUrl.
- State the operation explicitly: Use clear action verbs like "replace," "change," "put," "combine," "generate."
- Keep within 1000 characters: Prompts have a maximum length of 1000 characters.
Prompt Examples by Scenario
Object replacement:
Replace the vase on the table in image 1 with a potted plant
Background color change:
Change the background color of image 1 to pure white
Product compositing:
Place the product from image 2 onto the marble countertop in image 1
Style transfer:
Transform image 1 into the artistic style shown in image 2
Text-to-image (no reference):
A professional product photo of a sleek black wireless headphone on a gradient blue background, studio lighting, 8K quality
Model swapping:
Replace the model in image 1 with a different model while keeping the same clothing and pose
Usage
- API Endpoint:
POST /multimodal/generateImage (see references/api.md for full parameters, responses, and error codes)
- Python Script:
python scripts/multimodal_generate_image.py '<JSON parameters>'
Output strategy (script default behavior):
- Prints the full JSON response to stdout
Data reading tip: Use jq or ConvertFrom-Json to extract specific fields from the response as needed.
Display Rules
- Show the generated image: When the response contains image content in the
text field, display it directly to the user using markdown image syntax.
- Status reporting: Check the
status and finished fields. If image generation is still in progress, inform the user and advise waiting.
- Prompt transparency: Briefly describe what prompt and parameters were sent so the user understands what was requested.
- Aspect ratio confirmation: If the user does not specify dimensions, use the default 1:1 ratio but mention it so they can request a different ratio if needed.
- Reference image guidance: If the user wants a result close to an existing image but did not provide a reference URL, proactively suggest they provide one for better fidelity.
- Error handling: When generation fails, explain the issue based on the response
status field and suggest adjustments (e.g., simplify the prompt, check reference image URLs, try a different aspect ratio).
Important Limitations
- Reference image limit: A maximum of 3 reference image URLs can be provided per request.
- Prompt length: The prompt must not exceed 1000 characters.
- URL validity: Reference image URLs must be publicly accessible. Private or expired URLs will cause failures.
- Aspect ratio options: Only 1:1, 3:4, 4:3, 9:16, and 16:9 are supported.
User Expression & Scenario Quick Reference
Applicable -- Requests involving image generation or editing:
| User Says |
Scenario |
| "Generate an image," "Create a picture" |
Text-to-image generation |
| "Edit this photo," "Modify the image" |
Image editing |
| "Change the background," "Make it white background" |
Background replacement |
| "Put the product on this scene" |
Product compositing |
| "Make it look like this style" |
Style transfer |
| "Swap the model," "Change the person" |
Model swapping |
| "Create a product photo" |
Product image generation |
| "Make a vertical/landscape version" |
Aspect ratio adjustment |
Not applicable -- Needs beyond image generation:
- Image analysis or recognition (reading text from images, identifying objects)
- Video generation or editing
- Image file format conversion
- Batch processing of hundreds of images
- Image hosting or storage
Authentication
Set NEXSCOPE_API_KEY. Visit https://www.nexscope.ai/help/skills-external-access?co-from=skillNS to manage credits.
1---2name: ecommerce-multimodal-generate-image3description: AI-driven image generation and editing tool for creating high-quality product images. Triggered when users ask to generate images, create product pictures, edit photos, text-to-image, image-to-image, replace backgrounds, transform styles, composite products into scenes, swap models, or create any type of AI-generated visual content. Even if the user does not explicitly say "AI image," this skill should be triggered whenever the request involves creating, modifying, or transforming images.4---56# AI Image Generation78This skill guides you on how to generate and edit images using the AI image generation service, helping users create high-quality product images, modify existing images, and perform creative visual transformations.910## Core Concepts1112The AI Image Generation tool produces new images based on a text prompt and optional reference images. It supports a wide range of use cases:1314- **Text-to-image**: Generate a brand-new image purely from a text description.15- **Image-to-image**: Provide one or more reference images and a prompt to generate a new image that preserves elements from the references.16- **Image editing**: Modify specific elements, colors, backgrounds, or styles in an existing image.17- **Product compositing**: Place a product from one image into a scene from another image.18- **Model swapping**: Replace the model or mannequin in a product photo.1920**Reference images are strongly recommended** when the user wants the output to closely resemble an existing product or scene. Up to 3 reference image URLs can be provided, separated by commas.2122## Parameter Guide2324| Parameter | Required | Description | Default |25|-----------|----------|-------------|---------|26| prompt | Yes | Text description of the desired image. Supports text-to-image, image-to-image, editing, model swapping, and more. Max 1000 characters. | -- |27| referenceImageUrl | No | URL(s) of reference image(s). Separate multiple URLs with commas. Up to 3 images supported. Max 1000 characters. | -- |28| aspectRatio | No | Aspect ratio of the output image. | 1:1 |2930### Supported Aspect Ratios3132| Value | Description |33|-------|-------------|34| 1:1 | Square (default) |35| 3:4 | Portrait |36| 4:3 | Landscape |37| 9:16 | Vertical fullscreen |38| 16:9 | Horizontal fullscreen |3940### Prompt Writing Tips41421. **Be specific and descriptive**: Clearly describe the subject, scene, lighting, style, and mood you want.432. **Reference images by number**: When using reference images, refer to them as "image 1," "image 2," etc., in the order they appear in `referenceImageUrl`.443. **State the operation explicitly**: Use clear action verbs like "replace," "change," "put," "combine," "generate."454. **Keep within 1000 characters**: Prompts have a maximum length of 1000 characters.4647### Prompt Examples by Scenario4849**Object replacement**:50```51Replace the vase on the table in image 1 with a potted plant52```5354**Background color change**:55```56Change the background color of image 1 to pure white57```5859**Product compositing**:60```61Place the product from image 2 onto the marble countertop in image 162```6364**Style transfer**:65```66Transform image 1 into the artistic style shown in image 267```6869**Text-to-image (no reference)**:70```71A professional product photo of a sleek black wireless headphone on a gradient blue background, studio lighting, 8K quality72```7374**Model swapping**:75```76Replace the model in image 1 with a different model while keeping the same clothing and pose77```7879## Usage8081- **API Endpoint**: `POST /multimodal/generateImage` (see `references/api.md` for full parameters, responses, and error codes)82- **Python Script**: `python scripts/multimodal_generate_image.py '<JSON parameters>'`8384**Output strategy (script default behavior)**:85- Prints the full JSON response to stdout8687**Data reading tip**: Use `jq` or `ConvertFrom-Json` to extract specific fields from the response as needed.8889## Display Rules90911. **Show the generated image**: When the response contains image content in the `text` field, display it directly to the user using markdown image syntax.922. **Status reporting**: Check the `status` and `finished` fields. If image generation is still in progress, inform the user and advise waiting.933. **Prompt transparency**: Briefly describe what prompt and parameters were sent so the user understands what was requested.944. **Aspect ratio confirmation**: If the user does not specify dimensions, use the default 1:1 ratio but mention it so they can request a different ratio if needed.955. **Reference image guidance**: If the user wants a result close to an existing image but did not provide a reference URL, proactively suggest they provide one for better fidelity.966. **Error handling**: When generation fails, explain the issue based on the response `status` field and suggest adjustments (e.g., simplify the prompt, check reference image URLs, try a different aspect ratio).9798## Important Limitations99100- **Reference image limit**: A maximum of 3 reference image URLs can be provided per request.101- **Prompt length**: The prompt must not exceed 1000 characters.102- **URL validity**: Reference image URLs must be publicly accessible. Private or expired URLs will cause failures.103- **Aspect ratio options**: Only 1:1, 3:4, 4:3, 9:16, and 16:9 are supported.104105## User Expression & Scenario Quick Reference106107**Applicable** -- Requests involving image generation or editing:108109| User Says | Scenario |110|-----------|----------|111| "Generate an image," "Create a picture" | Text-to-image generation |112| "Edit this photo," "Modify the image" | Image editing |113| "Change the background," "Make it white background" | Background replacement |114| "Put the product on this scene" | Product compositing |115| "Make it look like this style" | Style transfer |116| "Swap the model," "Change the person" | Model swapping |117| "Create a product photo" | Product image generation |118| "Make a vertical/landscape version" | Aspect ratio adjustment |119120**Not applicable** -- Needs beyond image generation:121122- Image analysis or recognition (reading text from images, identifying objects)123- Video generation or editing124- Image file format conversion125- Batch processing of hundreds of images126- Image hosting or storage127128## Authentication129130Set `NEXSCOPE_API_KEY`. Visit https://www.nexscope.ai/help/skills-external-access?co-from=skillNS to manage credits.
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