135 lines
3.0 KiB
Go
135 lines
3.0 KiB
Go
package bilds
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import (
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"image"
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"github.com/anthonynsimon/bild/adjust"
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"github.com/spf13/cobra"
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)
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func brightness() *cobra.Command {
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var change float64
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var cmd = &cobra.Command{
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Use: "brightness",
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Short: "调整图像的相对亮度",
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Args: cobra.ExactArgs(2),
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Example: "brightness --change 0.5 input.jpg output.jpg",
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Run: func(cmd *cobra.Command, args []string) {
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fin := args[0]
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fout := args[1]
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apply(fin, fout, func(img image.Image) (image.Image, error) {
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return adjust.Brightness(img, change), nil
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})
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}}
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cmd.Flags().Float64VarP(&change, "change", "c", 0, "adjust change")
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return cmd
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}
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func contrast() *cobra.Command {
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var change float64
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var cmd = &cobra.Command{
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Use: "contrast",
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Short: "调整图像的相对对比度",
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Args: cobra.ExactArgs(2),
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Example: "contrast --change 0.5 input.jpg output.jpg",
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Run: func(cmd *cobra.Command, args []string) {
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fin := args[0]
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fout := args[1]
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apply(fin, fout, func(img image.Image) (image.Image, error) {
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return adjust.Contrast(img, change), nil
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})
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}}
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cmd.Flags().Float64VarP(&change, "change", "c", 0, "adjust change")
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return cmd
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}
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func gamma() *cobra.Command {
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var change float64
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var cmd = &cobra.Command{
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Use: "gamma",
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Short: "adjust the gamma of an image",
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Args: cobra.ExactArgs(2),
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Example: "gamma --gamma 1.1 input.jpg output.jpg",
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Run: func(cmd *cobra.Command, args []string) {
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fin := args[0]
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fout := args[1]
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apply(fin, fout, func(img image.Image) (image.Image, error) {
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return adjust.Gamma(img, change), nil
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})
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}}
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cmd.Flags().Float64VarP(&change, "gamma", "g", 0, "set the gamma of the image")
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return cmd
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}
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func hue() *cobra.Command {
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var change int
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var cmd = &cobra.Command{
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Use: "hue",
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Short: "adjust the hue of an image",
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Args: cobra.ExactArgs(2),
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Example: "hue --change 170 input.jpg output.jpg",
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Run: func(cmd *cobra.Command, args []string) {
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fin := args[0]
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fout := args[1]
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apply(fin, fout, func(img image.Image) (image.Image, error) {
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return adjust.Hue(img, change), nil
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})
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}}
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cmd.Flags().IntVarP(&change, "change", "c", 0, "adjust change")
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return cmd
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}
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func saturation() *cobra.Command {
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var change float64
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var cmd = &cobra.Command{
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Use: "saturation",
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Short: "adjust the saturation of an image",
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Args: cobra.ExactArgs(2),
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Example: "saturation --change 170 input.jpg output.jpg",
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Run: func(cmd *cobra.Command, args []string) {
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fin := args[0]
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fout := args[1]
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apply(fin, fout, func(img image.Image) (image.Image, error) {
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return adjust.Saturation(img, change), nil
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})
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}}
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cmd.Flags().Float64VarP(&change, "change", "c", 0, "adjust change")
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return cmd
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}
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func createAdjust() *cobra.Command {
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adjustCmd := &cobra.Command{
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Use: "adjust",
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Short: "adjust basic image features like brightness or contrast",
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}
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adjustCmd.AddCommand(brightness())
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adjustCmd.AddCommand(contrast())
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adjustCmd.AddCommand(gamma())
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adjustCmd.AddCommand(hue())
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adjustCmd.AddCommand(saturation())
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return adjustCmd
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}
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