feat: use bild (#268)

* feat(mosaic): use bild

* chore(conversion): format code

* refactor(mosaic): delete not needed type conversion

* feat(conversion): use bild

* refactor(mosaic): remove more unnecessary type conversions

.github/workflows/check-on-pr-conversion.yml

@@ -8,7 +8,7 @@
 # by the GNU Affero General Public License v3.0 only, included in the file
 # licenses/AGPL.txt.
 
-name: Lin and build voltaserve/conversion
+name: Lint and build voltaserve/conversion
 
 on:
   pull_request:

conversion/go.mod

@@ -17,11 +17,13 @@ require (
 
 require (
 	github.com/andybalholm/brotli v1.1.0 // indirect
+	github.com/anthonynsimon/bild v0.14.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/klauspost/compress v1.17.9 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
@@ -31,11 +33,14 @@ require (
 	github.com/minio/md5-simd v1.1.2 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/rs/xid v1.5.0 // indirect
+	github.com/spf13/cobra v0.0.5 // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasthttp v1.55.0 // indirect
 	github.com/valyala/tcplisten v1.0.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/crypto v0.24.0 // indirect
+	golang.org/x/image v0.18.0 // indirect
 	golang.org/x/net v0.26.0 // indirect
 	golang.org/x/sys v0.21.0 // indirect
 	golang.org/x/text v0.16.0 // indirect

conversion/go.sum

@@ -1,9 +1,18 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
 github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
+github.com/anthonynsimon/bild v0.14.0 h1:IFRkmKdNdqmexXHfEU7rPlAmdUZ8BDZEGtGHDnGWync=
+github.com/anthonynsimon/bild v0.14.0/go.mod h1:hcvEAyBjTW69qkKJTfpcDQ83sSZHxwOunsseDfeQhUs=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
+github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gabriel-vasile/mimetype v1.4.4 h1:QjV6pZ7/XZ7ryI2KuyeEDE8wnh7fHP9YnQy+R0LnH8I=
 github.com/gabriel-vasile/mimetype v1.4.4/go.mod h1:JwLei5XPtWdGiMFB5Pjle1oEeoSeEuJfJE+TtfvdB/s=
 github.com/go-ini/ini v1.67.0 h1:z6ZrTEZqSWOTyH2FlglNbNgARyHG8oLW9gMELqKr06A=
@@ -22,6 +31,9 @@ github.com/gofiber/fiber/v2 v2.52.5 h1:tWoP1MJQjGEe4GB5TUGOi7P2E0ZMMRx5ZTG4rT+yG
 github.com/gofiber/fiber/v2 v2.52.5/go.mod h1:KEOE+cXMhXG0zHc9d8+E38hoX+ZN7bhOtgeF2oT6jrQ=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
+github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
@@ -31,6 +43,7 @@ github.com/klauspost/cpuid/v2 v2.2.8 h1:+StwCXwm9PdpiEkPyzBXIy+M9KUb4ODm0Zarf1kS
 github.com/klauspost/cpuid/v2 v2.2.8/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
+github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
@@ -42,39 +55,61 @@ github.com/minio/md5-simd v1.1.2 h1:Gdi1DZK69+ZVMoNHRXJyNcxrMA4dSxoYHZSQbirFg34=
 github.com/minio/md5-simd v1.1.2/go.mod h1:MzdKDxYpY2BT9XQFocsiZf/NKVtR7nkE4RoEpN+20RM=
 github.com/minio/minio-go/v7 v7.0.73 h1:qr2vi96Qm7kZ4v7LLebjte+MQh621fFWnv93p12htEo=
 github.com/minio/minio-go/v7 v7.0.73/go.mod h1:qydcVzV8Hqtj1VtEocfxbmVFa2siu6HGa+LDEPogjD8=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
+github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rs/xid v1.5.0 h1:mKX4bl4iPYJtEIxp6CYiUuLQ/8DYMoz0PUdtGgMFRVc=
 github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
+github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/speps/go-hashids/v2 v2.0.1 h1:ViWOEqWES/pdOSq+C1SLVa8/Tnsd52XC34RY7lt7m4g=
 github.com/speps/go-hashids/v2 v2.0.1/go.mod h1:47LKunwvDZki/uRVD6NImtyk712yFzIs3UF3KlHohGw=
+github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
+github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
+github.com/spf13/cobra v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s=
+github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
+github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
+github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
+github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
+github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.55.0 h1:Zkefzgt6a7+bVKHnu/YaYSOPfNYNisSVBo/unVCf8k8=
 github.com/valyala/fasthttp v1.55.0/go.mod h1:NkY9JtkrpPKmgwV3HTaS2HWaJss9RSIsRVfcxxoHiOM=
 github.com/valyala/tcplisten v1.0.0 h1:rBHj/Xf+E1tRGZyWIWwJDiRY0zc1Js+CV5DqwacVSA8=
 github.com/valyala/tcplisten v1.0.0/go.mod h1:T0xQ8SeCZGxckz9qRXTfG43PvQ/mcWh7FwZEA7Ioqkc=
+github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
 go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
+golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
 golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
+golang.org/x/image v0.18.0 h1:jGzIakQa/ZXI1I0Fxvaa9W7yP25TqT6cHIHn+6CqvSQ=
+golang.org/x/image v0.18.0/go.mod h1:4yyo5vMFQjVjUcVk4jEQcU9MGy/rulF5WvUILseCM2E=
 golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
 golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
+golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 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 v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
 golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
 golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

conversion/processor/image_processor.go

@@ -11,9 +11,13 @@
 package processor
 
 import (
+	"fmt"
 	"strconv"
 	"strings"
 
+	"github.com/anthonynsimon/bild/imgio"
+	"github.com/anthonynsimon/bild/transform"
+
 	"github.com/kouprlabs/voltaserve/conversion/client/api_client"
 	"github.com/kouprlabs/voltaserve/conversion/config"
 	"github.com/kouprlabs/voltaserve/conversion/helper"
@@ -54,56 +58,55 @@ func (p *ImageProcessor) Thumbnail(inputPath string, outputPath string) (*bool,
 }
 
 func (p *ImageProcessor) MeasureImage(inputPath string) (*api_client.ImageProps, error) {
-	size, err := infra.NewCommand().ReadOutput("identify", "-format", "%w,%h", inputPath)
-	if err != nil {
-		return nil, err
-	}
-	values := strings.Split(*size, ",")
-	width, err := strconv.Atoi(helper.RemoveNonNumeric(values[0]))
-	if err != nil {
-		return nil, err
-	}
-	height, err := strconv.Atoi(helper.RemoveNonNumeric(values[1]))
+	img, err := imgio.Open(inputPath)
 	if err != nil {
 		return nil, err
 	}
 	return &api_client.ImageProps{
-		Width:  width,
-		Height: height,
+		Width:  img.Bounds().Dx(),
+		Height: img.Bounds().Dy(),
 	}, nil
 }
 
 func (p *ImageProcessor) ResizeImage(inputPath string, width int, height int, outputPath string) error {
-	var widthStr string
-	if width == 0 {
-		widthStr = ""
-	} else {
-		widthStr = strconv.FormatInt(int64(width), 10)
+	img, err := imgio.Open(inputPath)
+	if err != nil {
+		return err
 	}
-	var heightStr string
-	if height == 0 {
-		heightStr = ""
+	newImg := transform.Resize(img, width, height, transform.Lanczos)
+	var encoder imgio.Encoder
+	if strings.HasSuffix(inputPath, ".png") {
+		encoder = imgio.PNGEncoder()
+	} else if strings.HasSuffix(inputPath, ".jpg") {
+		encoder = imgio.JPEGEncoder(100)
 	} else {
-		heightStr = strconv.FormatInt(int64(height), 10)
-	}
-	if err := infra.NewCommand().Exec("convert", "-resize", widthStr+"x"+heightStr, inputPath, outputPath); err != nil {
-		return err
+		return fmt.Errorf("unsupported image format: %s", inputPath)
 	}
-	return nil
+	return imgio.Save(outputPath, newImg, encoder)
 }
 
 func (p *ImageProcessor) ConvertImage(inputPath string, outputPath string) error {
-	if err := infra.NewCommand().Exec("convert", inputPath, outputPath); err != nil {
+	img, err := imgio.Open(inputPath)
+	if err != nil {
 		return err
 	}
-	return nil
+	var encoder imgio.Encoder
+	if strings.HasSuffix(outputPath, ".png") {
+		encoder = imgio.PNGEncoder()
+	} else if strings.HasSuffix(outputPath, ".jpg") {
+		encoder = imgio.JPEGEncoder(100)
+	} else {
+		return fmt.Errorf("unsupported image format: %s", inputPath)
+	}
+	return imgio.Save(outputPath, img, encoder)
 }
 
 func (p *ImageProcessor) RemoveAlphaChannel(inputPath string, outputPath string) error {
-	if err := infra.NewCommand().Exec("convert", inputPath, "-alpha", "off", outputPath); err != nil {
+	img, err := imgio.Open(inputPath)
+	if err != nil {
 		return err
 	}
-	return nil
+	return imgio.Save(outputPath, img, imgio.JPEGEncoder(100))
 }
 
 func (p *ImageProcessor) DPIFromImage(inputPath string) (*int, error) {

go.work.sum

@@ -1,10 +1,33 @@
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6 h1:G1bPvciwNyF7IUmKXNt9Ak3m6u9DE1rF+RmtIkBpVdA=
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+github.com/coreos/go-etcd v2.0.0+incompatible h1:bXhRBIXoTm9BYHS3gE0TtQuyNZyeEMux2sDi4oo5YOo=
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mosaic/builder/models.go

@@ -13,10 +13,11 @@ package builder
 import (
 	"fmt"
 	"image"
-	"os"
 	"path/filepath"
+	"strings"
 
-	"github.com/disintegration/imaging"
+	"github.com/anthonynsimon/bild/imgio"
+	"github.com/anthonynsimon/bild/transform"
 )
 
 type Metadata struct {
@@ -182,7 +183,7 @@ type Image struct {
 }
 
 func NewImage(file string) (*Image, error) {
-	img, err := imaging.Open(file)
+	img, err := imgio.Open(file)
 	if err != nil {
 		return nil, err
 	}
@@ -214,36 +215,29 @@ func (img *Image) Extension() string {
 	return filepath.Ext(img.file)
 }
 
-func (img *Image) Load(file string) error {
-	loadedImg, err := imaging.Open(file)
-	if err != nil {
-		return err
-	}
-	img.img = loadedImg
-	img.file = file
-	return nil
-}
-
 func (img *Image) Crop(x, y, width, height int) error {
-	croppedImg := imaging.Crop(img.img, image.Rect(x, y, x+width, y+height))
-	img.img = croppedImg
+	img.img = transform.Crop(
+		img.img,
+		image.Rectangle{
+			Min: image.Point{X: x, Y: y},
+			Max: image.Point{X: x + width, Y: y + height},
+		})
 	return nil
 }
 
-func (img *Image) CropWithRectangle(rectangle Rectangle) error {
-	return img.Crop(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height)
-}
-
 func (img *Image) ScaleWithAspectRatio(width, height int) error {
-	scaledImg := imaging.Fit(img.img, width, height, imaging.Lanczos)
-	img.img = scaledImg
+	img.img = transform.Resize(img.img, width, height, transform.Lanczos)
 	return nil
 }
 
 func (img *Image) Save(file string) error {
-	return imaging.Save(img.img, file)
-}
-
-func (img *Image) SaveAsPngToStream(stream *os.File) error {
-	return imaging.Encode(stream, img.img, imaging.PNG)
+	var encoder imgio.Encoder
+	if strings.HasSuffix(file, ".png") {
+		encoder = imgio.PNGEncoder()
+	} else if strings.HasSuffix(file, ".jpg") {
+		encoder = imgio.JPEGEncoder(100)
+	} else {
+		return fmt.Errorf("unsupported image format: %s", file)
+	}
+	return imgio.Save(file, img.img, encoder)
 }

mosaic/builder/mosaic_builder.go

@@ -146,19 +146,19 @@ func (mb *MosaicBuilder) Decompose(image *Image, zoomLevel int, region Region) Z
 
 	cols := 1
 	if tileWidthExceeded {
-		cols = int(image.Width()) / mb.TileSize().Width()
+		cols = image.Width() / mb.TileSize().Width()
 	}
 	rows := 1
 	if tileHeightExceeded {
-		rows = int(image.Height()) / mb.TileSize().Height()
+		rows = image.Height() / mb.TileSize().Height()
 	}
 	remainingWidth := 0
 	if tileWidthExceeded {
-		remainingWidth = int(image.Width()) - (mb.TileSize().Width() * cols)
+		remainingWidth = image.Width() - (mb.TileSize().Width() * cols)
 	}
 	remainingHeight := 0
 	if tileHeightExceeded {
-		remainingHeight = int(image.Height()) - (mb.TileSize().Height() * rows)
+		remainingHeight = image.Height() - (mb.TileSize().Height() * rows)
 	}
 	totalCols := cols
 	if remainingWidth != 0 {
@@ -171,10 +171,10 @@ func (mb *MosaicBuilder) Decompose(image *Image, zoomLevel int, region Region) Z
 
 	adaptedTileSize := *mb.TileSize()
 	if !tileWidthExceeded {
-		adaptedTileSize.SetWidth(int(image.Width()))
+		adaptedTileSize.SetWidth(image.Width())
 	}
 	if !tileHeightExceeded {
-		adaptedTileSize.SetHeight(int(image.Height()))
+		adaptedTileSize.SetHeight(image.Height())
 	}
 
 	colStart, colEnd, rowStart, rowEnd := 0, cols-1, 0, rows-1
@@ -303,7 +303,7 @@ func (mb *MosaicBuilder) Scale(zoomLevel int) (*Image, error) {
 }
 
 func (mb *MosaicBuilder) GetImageSizeForZoomLevel(zoomLevel int) Size {
-	size := Size{Width: int(mb.image.Width()), Height: int(mb.image.Height())}
+	size := Size{Width: mb.image.Width(), Height: mb.image.Height()}
 	counter := 0
 	for {
 		if counter == zoomLevel {