v1.3.9

What's Changed

• fix: image from file path with special chars and option string by @cshum in #87
• fix: use typed C temporaries for scalar output params by @cshum in #88

Full Changelog: v1.3.8...v1.3.9

v1.3.8

What's Changed

• Only detect the actual Seek() function when setting Seeker function by @vansante in #84
• build: update generated vips packages by @github-actions[bot] in #85

New Contributors

• @vansante made their first contribution in #84

Full Changelog: v1.3.7...v1.3.8

v1.3.7

What's Changed

• docs: working with animated images by @cshum in #82
• fix: memory leak in getting int slice output by @cshum in #83

Full Changelog: v1.3.5...v1.3.7

v1.3.5

image.WriteToMemory

Export a vips image as raw pixel bytes — the symmetric counterpart to NewImageFromMemory:

buf, err := img.WriteToMemory()

Use Width(), Height(), Bands(), and BandFormat() to interpret the buffer. See examples/go_image for a complete example of converting between Go's image.Image and vips using raw memory.

What's Changed

• feat: image.WriteToMemory by @cshum in #80
• feat: image loop API by @cshum in #81

Full Changelog: v1.3.3...v1.3.5

v1.3.3

Bug fix: vips.KeepNone now works correctly

Previously, setting Keep: KeepNone (or relying on VIPS_STRIP_METADATA=1
via imagor) had no effect — metadata was always preserved.

This was because vipsgen_set_int skipped zero values, so KeepNone = 0 was
silently dropped and libvips defaulted to keeping all metadata.

• Added vipsgen_set_keep: a dedicated C setter for the keep parameter
• KeepNone is remapped to -1 in Go; vipsgen_set_keep translates it back
  to C VIPS_FOREIGN_KEEP_NONE (0) before passing to libvips
• Zero value of Keep (0) now safely means "not set" — libvips uses its
  own default (keep all)

What's Changed

• fix: pass keep=0 (KeepNone) through to libvips for metadata stripping by @cshum in #78
• refactor: flag handling for VipsForeignKeep by @cshum in #79

Full Changelog: v1.3.1...v1.3.3

v1.3.1

What's Changed

• feat: add --include-test flag for conditional test generation by @cshum in #70
• feat(target): add seek support for targets by @ekazakas in #73
• build: update generated vips packages for #73 by @github-actions[bot] in #74

New Contributors

• @ekazakas made their first contribution in #73

Full Changelog: v1.3.0...v1.3.1

v1.3.0

libvips 8.18 and multi-version pre-generated packages

https://www.libvips.org/2025/12/04/What's-new-in-8.18.html

• Updated to libvips 8.18.0 - Latest bindings include support for all new operations and features in libvips 8.18

• Pre-generated bindings for multiple libvips versions- Now shipping with bindings for libvips 8.16.1, 8.17.3, and 8.18.0

  • github.com/cshum/vipsgen/vips for libvips 8.18.x (recommended)
  • github.com/cshum/vipsgen/vips817 for libvips 8.17.x
  • github.com/cshum/vipsgen/vips816 for libvips 8.16.x

What's Changed

• build: libvips 8.18 and add multi-version pre-generated packages support by @cshum in #69

Full Changelog: v1.2.1...v1.3.0

v1.2.1

What's Changed

• fix: signed Integer Interpretation for optional outputs by @cshum in #63

Full Changelog: v1.2.0...v1.2.1

v1.2.0

Optional Output Parameters Support

vipsgen v1.2.0 introduces optional output parameters for common argument types. See examples.

Smartcrop with Attention Coordinates

Operation: vips_smartcrop
Optional Outputs: AttentionX, AttentionY

The coordinates where the algorithm detected the most interesting content for cropping.

options := vips.DefaultSmartcropOptions()
err := img.Smartcrop(width, height, options)

// Access the attention coordinates
fmt.Printf("Attention Center: x=%d, y=%d\n", options.AttentionX, options.AttentionY)

Mosaic with Transformation Parameters

Operation: vips_mosaic
Optional Outputs: Dx0, Dy0, Scale1, Angle1, Dx1, Dy1

The detected transformation parameters when combining two images.

options := vips.DefaultMosaicOptions()
err := img1.Mosaic(img2, direction, xref, yref, xsec, ysec, options)

// Access transformation parameters
fmt.Printf("Integer Offset: dx0=%d, dy0=%d\n", options.Dx0, options.Dy0)
fmt.Printf("Detected Scale: %.3f\n", options.Scale1)
fmt.Printf("Detected Rotation: %.3f degrees\n", options.Angle1)

What's Changed

• feat: optional output arguments support for int, float64, and bool by @cshum in #61

Full Changelog: v1.1.3...v1.2.0

v1.1.3

What's Changed

• build: libvips 8.17.2 by @cshum in #57
• feat: SetArrayInt and SetArrayDouble by @cshum in #56

Full Changelog: v1.1.2...v1.1.3