update readme

README.md

@@ -16,6 +16,7 @@ EPUB is now support by Amazon through [SendToKindle](https://www.amazon.com/gp/s
 - Auto contrast
 - Auto rotate (if reader mainly read on portrait)
 - Auto split double page (for easy read on portrait)
+- Keep double page if splitted
 - Remove blank image (empty image is removed)
 - Manga or Normal mode
 - Support cover page or not (first page will be taken in that case)
@@ -149,6 +150,7 @@ Options:
     AutoContrast              : true
     AutoRotate                : false
     AutoSplitDoublePage       : false
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : true
     HasCover                  : true
@@ -195,6 +197,7 @@ Options:
     AutoContrast              : true
     AutoRotate                : false
     AutoSplitDoublePage       : false
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : true
     HasCover                  : true
@@ -251,6 +254,7 @@ Options:
     AutoContrast              : false
     AutoRotate                : false
     AutoSplitDoublePage       : false
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : false
     HasCover                  : true
@@ -281,6 +285,7 @@ Options:
     AutoContrast              : true
     AutoRotate                : true
     AutoSplitDoublePage       : true
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : true
     HasCover                  : true
@@ -312,6 +317,7 @@ Options:
     AutoContrast              : true
     AutoRotate                : true
     AutoSplitDoublePage       : true
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : false
     HasCover                  : true
@@ -346,6 +352,7 @@ Options:
     AutoContrast              : false
     AutoRotate                : false
     AutoSplitDoublePage       : false
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : false
     HasCover                  : true
@@ -380,6 +387,7 @@ Options:
     AutoContrast              : true
     AutoRotate                : false
     AutoSplitDoublePage       : false
+    KeepDoublePageIfSplitted  : true
     NoBlankImage              : true
     Manga                     : true
     HasCover                  : true
@@ -480,6 +488,8 @@ Config:
     	Auto Rotate page when width > height
   -autosplitdoublepage
     	Auto Split double page when width > height
+  -keepdoublepageifsplitted (default true)
+    	Keep the double page if splitted
   -noblankimage (default true)
     	Remove blank image
   -manga

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/raff/pdfreader v0.0.0-20220308062436-033e8ac577f0
 	github.com/schollz/progressbar/v3 v3.13.1
 	github.com/tcnksm/go-latest v0.0.0-20170313132115-e3007ae9052e
-	golang.org/x/image v0.11.0
+	golang.org/x/image v0.12.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
@@ -24,7 +24,7 @@ require (
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/stretchr/testify v1.8.4 // indirect
-	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/net v0.15.0 // indirect
-	golang.org/x/sys v0.11.0 // indirect
+	golang.org/x/sys v0.12.0 // indirect
-	golang.org/x/term v0.11.0 // indirect
+	golang.org/x/term v0.12.0 // indirect
 )

go.sum

@@ -46,16 +46,16 @@ github.com/tcnksm/go-latest v0.0.0-20170313132115-e3007ae9052e/go.mod h1:d7u6HkT
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/image v0.11.0 h1:ds2RoQvBvYTiJkwpSFDwCcDFNX7DqjL2WsUgTNk0Ooo=
+golang.org/x/image v0.12.0 h1:w13vZbU4o5rKOFFR8y7M+c4A5jXDC0uXTdHYRP8X2DQ=
-golang.org/x/image v0.11.0/go.mod h1:bglhjqbqVuEb9e9+eNR45Jfu7D+T4Qan+NhQk8Ck2P8=
+golang.org/x/image v0.12.0/go.mod h1:Lu90jvHG7GfemOIcldsh9A2hS01ocl6oNO7ype5mEnk=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
+golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8=
-golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
+golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -67,19 +67,19 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
+golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
-golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
-golang.org/x/term v0.11.0 h1:F9tnn/DA/Im8nCwm+fX+1/eBwi4qFjRT++MhtVC4ZX0=
+golang.org/x/term v0.12.0 h1:/ZfYdc3zq+q02Rv9vGqTeSItdzZTSNDmfTi0mBAuidU=
-golang.org/x/term v0.11.0/go.mod h1:zC9APTIj3jG3FdV/Ons+XE1riIZXG4aZ4GTHiPZJPIU=
+golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=

internal/converter/converter.go

@@ -119,6 +119,7 @@ func (c *Converter) InitParse() {
 	c.AddBoolParam(&c.Options.AutoContrast, "autocontrast", c.Options.AutoContrast, "Improve contrast automatically")
 	c.AddBoolParam(&c.Options.AutoRotate, "autorotate", c.Options.AutoRotate, "Auto Rotate page when width > height")
 	c.AddBoolParam(&c.Options.AutoSplitDoublePage, "autosplitdoublepage", c.Options.AutoSplitDoublePage, "Auto Split double page when width > height")
+	c.AddBoolParam(&c.Options.KeepDoublePageIfSplitted, "keepdoublepageifsplitted", c.Options.KeepDoublePageIfSplitted, "Keep the double page if splitted")
 	c.AddBoolParam(&c.Options.NoBlankImage, "noblankimage", c.Options.NoBlankImage, "Remove blank image")
 	c.AddBoolParam(&c.Options.Manga, "manga", c.Options.Manga, "Manga mode (right to left)")
 	c.AddBoolParam(&c.Options.HasCover, "hascover", c.Options.HasCover, "Has cover. Indicate if your comic have a cover. The first page will be used as a cover and include after the title.")

internal/converter/options/converter_options.go

@@ -35,6 +35,7 @@ type Options struct {
 	AutoContrast               bool    `yaml:"auto_contrast"`
 	AutoRotate                 bool    `yaml:"auto_rotate"`
 	AutoSplitDoublePage        bool    `yaml:"auto_split_double_page"`
+	KeepDoublePageIfSplitted   bool    `yaml:"keep_double_page_if_splitted"`
 	NoBlankImage               bool    `yaml:"no_blank_image"`
 	Manga                      bool    `yaml:"manga"`
 	HasCover                   bool    `yaml:"has_cover"`
@@ -77,22 +78,23 @@ type Options struct {
 // Initialize default options.
 func New() *Options {
 	return &Options{
-		Profile:         "SR",
+		Profile:                  "SR",
-		Quality:         85,
+		Quality:                  85,
-		Grayscale:       true,
+		Grayscale:                true,
-		Crop:            true,
+		Crop:                     true,
-		CropRatioLeft:   1,
+		CropRatioLeft:            1,
-		CropRatioUp:     1,
+		CropRatioUp:              1,
-		CropRatioRight:  1,
+		CropRatioRight:           1,
-		CropRatioBottom: 3,
+		CropRatioBottom:          3,
-		NoBlankImage:    true,
+		NoBlankImage:             true,
-		HasCover:        true,
+		HasCover:                 true,
-		SortPathMode:    1,
+		KeepDoublePageIfSplitted: true,
-		ForegroundColor: "000",
+		SortPathMode:             1,
-		BackgroundColor: "FFF",
+		ForegroundColor:          "000",
-		Format:          "jpeg",
+		BackgroundColor:          "FFF",
-		TitlePage:       1,
+		Format:                   "jpeg",
-		profiles:        profiles.New(),
+		TitlePage:                1,
+		profiles:                 profiles.New(),
 	}
 }
 
@@ -208,6 +210,7 @@ func (o *Options) ShowConfig() string {
 		{"AutoContrast", o.AutoContrast, true},
 		{"AutoRotate", o.AutoRotate, true},
 		{"AutoSplitDoublePage", o.AutoSplitDoublePage, true},
+		{"KeepDoublePageIfSplitted", o.KeepDoublePageIfSplitted, o.AutoSplitDoublePage},
 		{"NoBlankImage", o.NoBlankImage, true},
 		{"Manga", o.Manga, true},
 		{"HasCover", o.HasCover, true},

internal/epub/epub.go

@@ -442,7 +442,10 @@ func (e *ePub) Write() error {
 			}
 
 			// Double Page or Last Image that is not a double page
-			if !e.Image.View.PortraitOnly && (img.DoublePage || (img.Part == 0 && img == lastImage)) {
+			if !e.Image.View.PortraitOnly &&
+				(img.DoublePage ||
+					(!e.Image.KeepDoublePageIfSplitted && img.Part == 1) ||
+					(img.Part == 0 && img == lastImage)) {
 				if err := e.writeBlank(wz, img); err != nil {
 					return err
 				}

internal/epub/imageprocessor/epub_image_processor.go

@@ -101,6 +101,14 @@ func (e *EPUBImageProcessor) Load() (images []*epubimage.Image, err error) {
 						Error:               input.Error,
 					}
 
+					// do not keep double page if requested
+					if !img.IsCover &&
+						img.DoublePage &&
+						e.Options.Image.AutoSplitDoublePage &&
+						!e.Options.Image.KeepDoublePageIfSplitted {
+						continue
+					}
+
 					if err = imgStorage.Add(img.EPUBImgPath(), dst, e.Image.Quality); err != nil {
 						bar.Close()
 						fmt.Fprintf(os.Stderr, "error with %s: %s", input.Name, err)

internal/epub/options/epub_options.go

@@ -22,21 +22,22 @@ type View struct {
 }
 
 type Image struct {
-	Crop                *Crop
+	Crop                     *Crop
-	Quality             int
+	Quality                  int
-	Brightness          int
+	Brightness               int
-	Contrast            int
+	Contrast                 int
-	AutoContrast        bool
+	AutoContrast             bool
-	AutoRotate          bool
+	AutoRotate               bool
-	AutoSplitDoublePage bool
+	AutoSplitDoublePage      bool
-	NoBlankImage        bool
+	KeepDoublePageIfSplitted bool
-	Manga               bool
+	NoBlankImage             bool
-	HasCover            bool
+	Manga                    bool
-	View                *View
+	HasCover                 bool
-	GrayScale           bool
+	View                     *View
-	GrayScaleMode       int
+	GrayScale                bool
-	Resize              bool
+	GrayScaleMode            int
-	Format              string
+	Resize                   bool
+	Format                   string
 }
 
 type Options struct {

internal/epub/templates/epub_templates_content.go

@@ -174,7 +174,12 @@ func getManifest(o *ContentOptions) []tag {
 
 	lastImage := o.Images[len(o.Images)-1]
 	for _, img := range o.Images {
-		addTag(img, !o.ImageOptions.View.PortraitOnly && (img.DoublePage || (img.Part == 0 && img == lastImage)))
+		addTag(
+			img,
+			!o.ImageOptions.View.PortraitOnly &&
+				(img.DoublePage ||
+					(!o.ImageOptions.KeepDoublePageIfSplitted && img.Part == 1) ||
+					(img.Part == 0 && img == lastImage)))
 	}
 
 	items = append(items, imageTags...)
@@ -212,7 +217,7 @@ func getSpineAuto(o *ContentOptions) []tag {
 		)
 	}
 	for _, img := range o.Images {
-		if img.DoublePage && o.ImageOptions.Manga == isOnTheRight {
+		if (img.DoublePage || img.Part == 1) && o.ImageOptions.Manga == isOnTheRight {
 			spine = append(spine, tag{
 				"itemref",
 				tagAttrs{"idref": img.SpaceKey(), "properties": getSpreadBlank()},

main.go

@@ -114,21 +114,22 @@ $ go install github.com/celogeek/go-comic-converter/v%d@%s
 		DryVerbose:                 cmd.Options.DryVerbose,
 		Quiet:                      cmd.Options.Quiet,
 		Image: &epuboptions.Image{
-			Crop:                &epuboptions.Crop{Enabled: cmd.Options.Crop, Left: cmd.Options.CropRatioLeft, Up: cmd.Options.CropRatioUp, Right: cmd.Options.CropRatioRight, Bottom: cmd.Options.CropRatioBottom},
+			Crop:                     &epuboptions.Crop{Enabled: cmd.Options.Crop, Left: cmd.Options.CropRatioLeft, Up: cmd.Options.CropRatioUp, Right: cmd.Options.CropRatioRight, Bottom: cmd.Options.CropRatioBottom},
-			Quality:             cmd.Options.Quality,
+			Quality:                  cmd.Options.Quality,
-			Brightness:          cmd.Options.Brightness,
+			Brightness:               cmd.Options.Brightness,
-			Contrast:            cmd.Options.Contrast,
+			Contrast:                 cmd.Options.Contrast,
-			AutoContrast:        cmd.Options.AutoContrast,
+			AutoContrast:             cmd.Options.AutoContrast,
-			AutoRotate:          cmd.Options.AutoRotate,
+			AutoRotate:               cmd.Options.AutoRotate,
-			AutoSplitDoublePage: cmd.Options.AutoSplitDoublePage,
+			AutoSplitDoublePage:      cmd.Options.AutoSplitDoublePage,
-			NoBlankImage:        cmd.Options.NoBlankImage,
+			KeepDoublePageIfSplitted: cmd.Options.KeepDoublePageIfSplitted,
-			Manga:               cmd.Options.Manga,
+			NoBlankImage:             cmd.Options.NoBlankImage,
-			HasCover:            cmd.Options.HasCover,
+			Manga:                    cmd.Options.Manga,
-			View:                &epuboptions.View{Width: profile.Width, Height: profile.Height, AspectRatio: cmd.Options.AspectRatio, PortraitOnly: cmd.Options.PortraitOnly, Color: epuboptions.Color{Foreground: cmd.Options.ForegroundColor, Background: cmd.Options.BackgroundColor}},
+			HasCover:                 cmd.Options.HasCover,
-			GrayScale:           cmd.Options.Grayscale,
+			View:                     &epuboptions.View{Width: profile.Width, Height: profile.Height, AspectRatio: cmd.Options.AspectRatio, PortraitOnly: cmd.Options.PortraitOnly, Color: epuboptions.Color{Foreground: cmd.Options.ForegroundColor, Background: cmd.Options.BackgroundColor}},
-			GrayScaleMode:       cmd.Options.GrayscaleMode,
+			GrayScale:                cmd.Options.Grayscale,
-			Resize:              !cmd.Options.NoResize,
+			GrayScaleMode:            cmd.Options.GrayscaleMode,
-			Format:              cmd.Options.Format,
+			Resize:                   !cmd.Options.NoResize,
+			Format:                   cmd.Options.Format,
 		},
 	}).Write(); err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v\n", err)