Create and refine product images

Module 4. Your goal: Create two product-image variations, compare them against your brief, and choose one to animate.

Before you start

• Complete Module 3 and reopen your saved image workflow.
• Have the product brief and reference image you prepared earlier.
• Keep using Seedream 5.0 Pro so the model and workflow stay familiar.

You will keep the graph and change its instructions. This is how a reusable workflow adapts to a new creative task.

Prepare the reference and brief

1. Upload your original product image in Load Image. Keep its connection to Seedream’s image_1 input.
2. Compare two compositions: a centred product presentation versus clear headline space on the right. Use your brief to decide which fits better. Check the background and product details in both.
3. Keep (2K) 2048x2048 (1:1) selected for this comparison.
4. Find control after generate and choose fixed. If your frontend shows this row twice, set both rows to fixed. Keep the same seed number, reference and model for both variations. Keep generation_count at 1.

Keep the seed unchanged; this frontend shows two seed-control rows.

A seed is the number used for a generation. fixed stops ComfyUI changing that number after a run. It keeps one setting constant for your comparison; it does not guarantee identical results.

Create variation A

Use a prompt that separates the details to keep from the changes you want:

Keep the product's shape, colour and label from the reference. Place the product in the centre of a clean white studio background with soft shadows. Do not add extra text or objects.

Before running, set Save Image’s filename_prefix to Course/variation-A. Press Run, review the output and copy its file from output/Course into your course folder. Record the prompt as variation-A-prompt.txt. Instructions to preserve details are requests, not a guarantee.

Create variation B

Change only the composition request. Keep the other generation settings unchanged:

Keep the product's shape, colour and label from the reference. Place the product on the left of a clean white studio background with soft shadows, leaving clear space on the right for advertising copy. Do not add extra text or objects.

Change Save Image’s filename_prefix to Course/variation-B. Press Run, then copy its file from output/Course into your course folder. Record variation-B-prompt.txt. Changing this filename only labels the output; keep the model’s generation settings unchanged.

Open the two saved image files in separate image-viewer windows and place them side by side. Compare at the same zoom, then zoom in on the product shape and label. Match the filename beginning variation-A or variation-B to its prompt.

Label A and B in Save Image; keep the two image connections unchanged.

Review and select

Check each variation against the same questions:

• Are the product’s shape, colour and important label details still recognizable?
• Does the composition meet your selected requirement?
• Are there unwanted objects, distorted details or altered text?

Select the stronger image and explain your choice using visible evidence. If neither meets the brief, revise one prompt instruction and review another result.

A separate illustrated example shows why both intended edits and preserved details need review.

The Image Edit guide provides another worked example. It uses Seedream Flash; keep using your saved Pro workflow for this lesson. To compare that separate example, open Image Edit from Templates > ComfyUI-BytePlus-ModelArk.

Template

Image Edit, in the ComfyUI template browser under BytePlus

BytePlus nodes

Seedream 4.5 & 5.0

Keys needed

ModelArk API key

Also uses

Load Image, MarkdownNote, Save Image (built into ComfyUI)

Practice

Use one requirement from your existing brief for this comparison. If you chose the logo-badge practice, replace “product” with “logo badge” in both prompts. Keep the two images, their prompts, and a short selection note.

Copy your chosen image as selected-image.png if its original file is PNG, or selected-image.jpg if it is JPEG. Do not change the extension to convert a file. Restore your chosen variation’s prompt in Seedream, then use Graph > Export to keep product-image-workflow.json with it. Restoring the prompt for export does not require another generation.

Completion check

• You changed one prompt requirement between the two variations.
• You can explain which image better meets the brief and why.
• You noted unwanted changes to product details or text.
• Your selected image and saved workflow are ready for the video lesson.

Next lesson

Module 5: Turn an image into video.

Previous: Module 3: Understand and build a workflow.