Convert CR3 to XBM

Why Convert CR3 to XBM?

Converting CR3 to XBM transforms your Canon RAW 3 image into a monochrome X BitMap format suitable for X11 icons and cursors. XBM files are stored as plain C source code, making them directly compilable into Unix/Linux applications without external image loading libraries.

CR3 (Canon RAW 3) uses Lossless or Lossy (HEIF-based) and supports 14-bit color depth. Converting to XBM reduces the image to 1-bit monochrome, creating a simple black-and-white bitmap that follows the X Window System standard for application resources.

The conversion process reads the source image, converts it to monochrome using a threshold algorithm, and outputs the result as a valid C source file containing the bitmap data array. This file can be included directly in X11 application source code using standard #include directives.

This conversion is useful for creating X11 application icons, cursor definitions, and embedded bitmap resources from existing images. The resulting XBM file is human-readable text that can be edited in any text editor or version control system.

Key Benefits of Converting CR3 to XBM:

• X11 Integration: Create icons and cursors for X Window System applications
• Compilable Code: XBM files are valid C source — include directly in applications
• Text-Based: Human-readable format, easy to version control and inspect
• No Dependencies: X11 reads XBM natively without external image libraries
• Clean Conversion: Threshold-based monochrome conversion from CR3 source
• Small Icons: Perfect for creating small UI elements from larger images
• Free & Online: No software installation required for conversion

Practical Examples

Example 1: Creating X11 Application Icons

Scenario: A developer converts a CR3 logo to XBM for use as an X11 application window icon.

Source: logo.cr3 (CR3 format)
Conversion: CR3 → XBM (1-bit monochrome)
Result: logo.xbm (C source code)

✓ Monochrome bitmap created
✓ Valid C source code output
✓ Ready for X11 application use
✓ #include compatible

Example 2: Building Cursor Resources

Scenario: A UI designer converts a CR3 cursor design to XBM for X Window cursor definitions.

Source: cursor_design.cr3 (CR3)
Conversion: CR3 → XBM
Result: cursor_design.xbm (32x32 monochrome)

✓ Threshold-based conversion
✓ Standard cursor size
✓ X11 cursor compatible
✓ Text-editable output

Example 3: Embedding Bitmaps in Code

Scenario: A programmer converts CR3 graphics to XBM for embedding directly in C/C++ application source code.

Source: button_icon.cr3 (CR3)
Conversion: CR3 → XBM
Result: button_icon.xbm (C array data)

✓ Direct source code inclusion
✓ No runtime image loading needed
✓ Compile-time resource embedding
✓ Minimal application overhead

Frequently Asked Questions (FAQ)

Q: Will I lose color converting CR3 to XBM?

A: Yes, XBM is a 1-bit monochrome format. All color information will be converted to black and white using a threshold algorithm. The conversion preserves shapes and contrast but not color or grayscale detail.

Q: What is XBM format used for?

A: XBM (X BitMap) is used for X Window System icons, cursors, and embedded bitmap resources. It stores image data as C source code that can be compiled directly into Unix/Linux applications.

Q: What resolution should my CR3 be for XBM?

A: XBM icons are typically small: 16x16, 32x32, or 48x48 pixels. While any resolution CR3 can be converted, the monochrome result works best with simple, high-contrast images at small sizes.

Q: Can I edit the resulting XBM file?

A: Yes! XBM files are plain text C source code. You can open them in any text editor and modify the pixel data array directly, or use image editors like GIMP that support XBM.

Q: How do I use XBM in my X11 application?

A: Include the XBM file in your C source with #include "icon.xbm", then use XCreateBitmapFromData() or similar Xlib functions to create a pixmap from the data arrays.

Q: Why is the XBM file larger than my CR3?

A: XBM stores data as text-based C code where each byte is written as a hexadecimal literal (e.g., 0xff). This text representation is much larger than binary formats. The trade-off is human readability and direct compilability.

Q: Can I batch convert multiple CR3 files to XBM?

A: Yes, our converter supports batch conversion. Upload multiple CR3 files and convert them all to XBM simultaneously.

Q: Is the conversion reversible?

A: The monochrome conversion is not fully reversible — color and grayscale data from the original CR3 is lost during the threshold conversion. You can convert XBM back to other formats, but they will remain monochrome.