func (prc *SimpleProcessor) processImage(p *image.Paletted, params imageserver.Params) (*image.Paletted, error) {
tmp, err := prc.Processor.Process(p, params)
if err != nil {
return nil, err
}
out, ok := tmp.(*image.Paletted)
if !ok {
out = image.NewPaletted(tmp.Bounds(), p.Palette)
imageserver_image_internal.Copy(out, tmp)
}
return out, nil
}
func (prc *CorrectionProcessor) process(nim image.Image, params imageserver.Params) (image.Image, error) {
original := nim
nim, _ = prc.before.Process(nim, params)
nim, err := prc.Processor.Process(nim, params)
if err != nil {
return nil, err
}
nim, _ = prc.after.Process(nim, params)
if isHighQuality(nim) && !isHighQuality(original) {
newNim := imageserver_image_internal.NewDrawableSize(original, nim.Bounds())
imageserver_image_internal.Copy(newNim, nim)
nim = newNim
}
return nim, nil
}