Method colorspaceToProcessing

processing/colorspace_to_processing.go:7–33

(c *Context)

)

func (p *Processor) colorspaceToProcessing(c *Context) error {
	if err := c.Img.Rad2Float(); err != nil {
		return err
	}

	supportsHDR := c.PO.Format().SupportsHDR() && c.PO.PreserveHDR()
	cs := guessTargetColorspace(c.Img, supportsHDR)

	if c.Img.IsLinear() {
		// If we keep its ICC, we'll get wrong colors after converting it to target
		// colorspace (we never convert back to linear).
		c.Img.RemoveColourProfile()
	} else {
		// vips 8.15+ tends to lose the colour profile during some color conversions.
		// We need to backup the colour profile before the conversion and restore it later.
		c.Img.BackupColourProfile()

		if shouldImportICC(c.Img) {
			if err := c.Img.ImportColourProfile(); err != nil {
				return err
			}
		}
	}

	// Convert to processing colorspace
	return c.Img.Colorspace(cs)
}

// guessTargetColorspace returns the colorspace to which the image should be saved.
// If target format supports 16-bit colorspace, it will be preferred.