67 lines
1.2 KiB
Go
67 lines
1.2 KiB
Go
package images
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import (
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"bytes"
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"image"
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)
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func GenerateImageVariants(cImg image.Image) ([]*IdentityImage, error) {
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var iis []*IdentityImage
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var err error
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for _, s := range ResizeDimensions {
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rImg := Resize(s, cImg)
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bb := bytes.NewBuffer([]byte{})
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err = EncodeToBestSize(bb, rImg, s)
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if err != nil {
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return nil, err
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}
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ii := &IdentityImage{
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Name: ResizeDimensionToName[s],
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Payload: bb.Bytes(),
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Width: rImg.Bounds().Dx(),
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Height: rImg.Bounds().Dy(),
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FileSize: bb.Len(),
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ResizeTarget: int(s),
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}
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iis = append(iis, ii)
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}
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return iis, nil
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}
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func GenerateIdentityImages(filepath string, aX, aY, bX, bY int) ([]*IdentityImage, error) {
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img, err := Decode(filepath)
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if err != nil {
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return nil, err
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}
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cropRect := image.Rectangle{
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Min: image.Point{X: aX, Y: aY},
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Max: image.Point{X: bX, Y: bY},
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}
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cImg, err := Crop(img, cropRect)
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if err != nil {
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return nil, err
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}
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return GenerateImageVariants(cImg)
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}
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func GenerateIdentityImagesFromURL(url string) ([]*IdentityImage, error) {
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img, err := DecodeFromURL(url)
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if err != nil {
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return nil, err
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}
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cImg, err := CropCenter(img)
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if err != nil {
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return nil, err
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}
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return GenerateImageVariants(cImg)
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}
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