本文整理匯總了Golang中github.com/kitwalker12/fotomat/vips.Image.PhotoMetric方法的典型用法代碼示例。如果您正苦於以下問題：Golang Image.PhotoMetric方法的具體用法？Golang Image.PhotoMetric怎麽用？Golang Image.PhotoMetric使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/kitwalker12/fotomat/vips.Image的用法示例。
在下文中一共展示了Image.PhotoMetric方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: useLossless
func useLossless(image *vips.Image, options SaveOptions) bool {
if !options.Lossless {
return false
}
if !options.LossyIfPhoto {
return true
}
// Mobile devices start being unwilling to load >= 3 megapixel PNGs.
// Also we don't want to bother to edge detect on large images.
if image.Xsize()*image.Ysize() >= 3*1024*1024 {
return false
}
// Take a histogram of a Sobel edge detect of our image. What's the
// highest number of histogram values in a row that are more than 1%
// of the maximum value? Above 16 indicates a photo.
metric, err := image.PhotoMetric(0.01)
return err != nil || metric < 16
}