Source: 爱上MAC | Download link: Picture Colorizer for Mac
Picture Colorizer for Mac is an image processing software dedicated to automatically colorizing black-and-white or sepia photos using artificial intelligence technology. Through advanced deep learning algorithms, it intelligently identifies scenes, objects, and people in photos and fills them with realistic, natural colors, bringing historical images to life. This guide will walk you through its interface, complete workflow, and usage tips in detail.
I. Core Interface and Workspace Overview
After launching the software, you will see a clean and intuitive modern interface, mainly divided into the following areas:
- Top Menu Bar: Contains standard Mac menu items (such as “File,” “Edit,” “View,” etc.) as well as software-specific function menus.
- Toolbar: Located below the menu bar, providing the most commonly used action buttons, such as “Import Photo,” “Start Colorizing,” “Save,” “Undo/Redo,” etc.
- Central Preview Canvas: Occupies the main area of the interface and is used to display the photo currently being processed. The before-and-after effects can be compared in real time using a slider.
- Colorization Mode Selection: Preset modes such as “Auto Colorize,” “Portrait Optimize,” etc.
- Color Adjustment Tools: After colorization, fine-tune the overall saturation, brightness, and contrast.
- Local Adjustment Tools: Allow users to manually correct or fill in colors for specific areas.
- History: Records operation steps for quick rollback.
II. Complete Workflow: From Project Creation to Export
1. Create/Open a Project (Import Photos)
Steps:
- Launch Picture Colorizer.
- Click the “Import Photos” button on the left side of the toolbar (the icon is usually a folder or an upward arrow).
- In the Finder window that pops up, select one or more black-and-white/sepia photos (common formats such as JPG and PNG are supported), and click “Open.”
Shortcut: Command (⌘) + O directly opens the file selection window.
Tip: The software automatically creates an independent processing project for each imported photo. You can also drag and drop image files directly into the central preview area of the software for quick import.
2. Core Colorization Processing
Steps:
- After importing the photo, it will be displayed in the central preview area.
- At the top of the right-side control panel, select an appropriate colorization mode. For example, “Auto Colorize” is suitable for most scenarios, while “Portrait Mode” will optimize skin tones.
- Click the prominent “Start Colorizing” or “Colorize” button on the control panel or in the toolbar.
- The software begins AI processing, and the status bar will show progress. Processing time depends on image size and complexity, typically ranging from a few seconds to one minute.
Shortcut: The processing shortcut is usually Command (⌘) + R (a common mapping for “Run”).
3. Effect Adjustment and Optimization
After colorization is complete, you can make fine adjustments in the right-side panel.
- Global Color Adjustment: Use the “Saturation,” “Brightness,” and “Contrast” sliders to adjust the color of the entire image.
- Local Correction:
- Find and click the “Brush” or “Local Adjustment” tool in the control panel.
- On the image in the preview area, paint over the areas where you want to modify the color.
- In the color picker that appears, select your desired color to overlay or blend.
- Before/After Comparison: Use the left-right slider above the preview area to visually compare the before and after colorization effects.
4. Save and Export the Final Work
Steps:
- Once you are satisfied with the result, click the “Save” or “Export” button in the toolbar.
- In the save dialog that appears, choose a save location (e.g., Desktop, Pictures folder).
- Name the output file.
- Choose the format (usually JPG or PNG).
- Adjust the output quality as needed (JPG quality slider).
- Click “Save” or “Export”.
Shortcut: The general shortcut for save/export is Command (⌘) + S or Command (⌘) + Shift + S.
III. Advanced Tips for Common Features
- Batch processing: Import multiple photos at once; the software will usually process them automatically in sequence or provide a batch processing button, greatly improving work efficiency.
- Flexible use of history: The history feature in the right panel is not just for undo (
⌘+Z)—you can also click any snapshot in the history steps to jump to that intermediate state and start a new editing branch from there. - Manual color guidance: For complex images where AI colorization is inaccurate, you can first use the local adjustment tool to manually apply the correct colors to key areas (e.g., clothing, sky), then run automatic colorization; the AI will reference these hints to perform more accurate overall colorization.
- Non-destructive editing: All colorization and adjustment operations are non-destructive, so you can go back and modify any step at any time, and the original black-and-white photo will not be overwritten.
IV. Common Problems and Solutions
- Problem 1: The colors look unnatural or color blocks appear after colorization.
- Solution: Try switching to a different colorization mode (for example, from “Auto” to “Portrait”). Use the global adjustment tool to appropriately lower the saturation and increase the natural feel. For areas with color blocks, use the local correction tool to soften or recolor them.
- Problem 2: Processing speed is very slow.
- Solution: Make sure the software is the latest version to optimize performance. Oversized image files will cause slow processing, so you can first reduce the size appropriately in software such as Photoshop (for example, set the long side to 2000 pixels) before importing for processing.
- Problem 3: After importing a photo, the software does not respond or reports an error.
- Solution: Check whether the image format is compatible (try converting it to JPG/PNG). Restart the software. Check whether the Mac system has sufficient remaining memory and close other applications that use a large amount of resources.
- Problem 4: How can I export only the colorized image without including the original black-and-white image?
- Solution: In the save/export dialog box, check carefully whether there is an “Export colorized result only” or similar option. If there is not, before saving, make sure the comparison slider in the preview area is fully slid to the colorized side.
V. Picture Colorizer for Mac Keyboard Shortcuts Summary
| Function | Shortcut (Mac) | Description |
|---|---|---|
| Open File | ⌘ + O |
Import a new photo |
| Save/Export File | ⌘ + S / ⌘ + Shift + S |
Save the project or export the final image |
| Start Colorization | ⌘ + R |
Run the AI colorization algorithm |
| Undo | ⌘ + Z |
Undo the previous action |
| Redo | ⌘ + Shift + Z |
Restore the undone action |
| Copy | ⌘ + C |
Copy the current image (preview state) |
| Paste | ⌘ + V |
Paste an image into the app |
| Zoom In Preview | ⌘ + + (Plus) |
Enlarge the image in the central preview area |
| Zoom Out Preview | ⌘ + - (Minus) |
Shrink the image in the central preview area |
| Actual Size | ⌘ + 0 |
View the image at 100% scale |
| Fit to Screen | ⌘ + 1 |
Scale the image to fit the preview window |
| Toggle Full Screen Mode | Control + ⌘ + F |
Enter or exit the full-screen workspace |








