optimize-and-resize-images.bat

@ECHO OFF
SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
COLOR 0A
TITLE IMAGEMAGICK OPTIMIZE AND RESIZE IMAGES

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REM Created By: SlyFox1186
REM https://pastebin.com/u/slyfox1186

REM Package Requirements: ImageMagick (DLL version) for Windows
REM During the installation select "Include Legacy Files" in order
REM to install mogrify.exe

REM User input options:
REM Choose the input and output file type
REM Shrink, enlarge, or manually enter the output file size(s)

REM File types supported: [ jpg | png | ico ]

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PUSHD "%~dp0"
IF NOT "%1"=="MAX" START /MAX CMD /D /C %0 MAX & GOTO :EOF

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:SET_VARIABLES
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SET MOGRIFY="%ProgramFiles%\ImageMagick\mogrify.exe"

REM USE THESE ICON FILE SIZES IF THE USER
REM DOES NOT WANT TO ENTER THE SIZE MANUALLY
REM FIND 'ICO_METHOD' BELOW FOR MORE INFO
SET ICO_SIZES=256,128,96,72,64,48,32,24,16

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:DELETE_PREVIOUS_RUNS
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REM IF DETECTED PROMPT THE USER TO DELETE ALL FILES FROM A PRIOR RUN
IF EXIST "Output" (
    ECHO OUTPUT FILES DETECTED: DELETE THEM? & ECHO=
    ECHO [1] Yes
    ECHO [2] No & ECHO=
    CHOICE /C 12 /N & CLS
    IF ERRORLEVEL 2 GOTO IN_TYPE
    IF ERRORLEVEL 1 RD /Q /S "Output"
)

REM CREATE OUTPUT DIR
MD "Output"

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:IN_TYPE
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REM PROMPT THE USER TO CHOOSE THE INPUT FILE TYPE
CLS
ECHO CHOOSE INPUT FILE TYPE & ECHO=
ECHO [1] JPG
ECHO [2] PNG
ECHO [3] ICON
ECHO [4] EXIT & ECHO=

CHOICE /C 1234 /N & CLS

IF ERRORLEVEL 4 GOTO :EOF
IF ERRORLEVEL 3 SET "FILEIN=ico" & GOTO GET_IMG_OUTPUT
IF ERRORLEVEL 2 SET "FILEIN=png" & GOTO GET_IMG_OUTPUT
IF ERRORLEVEL 1 SET "FILEIN=jpg"

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:GET_IMG_OUTPUT
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REM PROMPT THE USER TO CHOOSE THE OUTPUT FILE TYPE
CLS
ECHO CHOOSE OUTPUT FILE TYPE & ECHO=
ECHO [1] JPG
ECHO [2] PNG
ECHO [3] ICON
ECHO [4] EXIT & ECHO=

CHOICE /C 1234 /N & CLS

IF ERRORLEVEL 4 GOTO :EOF
IF ERRORLEVEL 3 SET "FILEOUT=ico" & GOTO PROCESS_CHOICES
IF ERRORLEVEL 2 SET "FILEOUT=png" & GOTO PROCESS_CHOICES
IF ERRORLEVEL 1 SET "FILEOUT=jpg"

:PROCESS_CHOICES
IF "%FILEIN%"=="jpg" IF "%FILEOUT%"=="jpg" GOTO RUN_OTHER
IF "%FILEIN%"=="jpg" IF "%FILEOUT%"=="png" GOTO RUN_OTHER
IF "%FILEIN%"=="jpg" IF "%FILEOUT%"=="ico" GOTO ICO_METHOD
IF "%FILEIN%"=="png" IF "%FILEOUT%"=="jpg" GOTO RUN_OTHER
IF "%FILEIN%"=="png" IF "%FILEOUT%"=="png" GOTO RUN_OTHER
IF "%FILEIN%"=="png" IF "%FILEOUT%"=="ico" GOTO ICO_METHOD

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:ICO_METHOD
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CLS
ECHO DO YOU WANT TO PICK THE OUTPUT PIXEL DIMENSIONS? & ECHO=
ECHO [1] YES
ECHO [2] NO & ECHO=

CHOICE /C 12 /N & CLS

IF ERRORLEVEL 2 GOTO RUN_ICO
IF ERRORLEVEL 1 GOTO SET_DIMENSIONS

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:RUN_ICO
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REM RUN MOGRIFY ON ALL FILES
SET CNT=0
FOR %%G IN (*.%FILEIN%) DO (
        SET /A CNT+=1
        ECHO [ #!CNT! ] %%~nxG
        %MOGRIFY% -monitor -path Output/ -alpha off -background none ^
        -define icon:auto-resize="%ICO_SIZES%" -format %FILEOUT% "*.%FILEIN%[0]"
    )
)

SET DID_IT_WORK=%ERRORLEVEL%
GOTO CHECK

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:SET_DIMENSIONS
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REM SET WIDTH
:REDO1
CLS
SET ANS1=
SET /P "ANS1=ENTER PIXEL WIDTH: "
IF "%ANS1%" LEQ "1" (
    ECHO VALUE MUST BE A NUMBER GREATER THAN 1
    ECHO=
    PAUSE
    GOTO REDO1
)

REM SET HEIGHT
:REDO2
CLS
SET ANS2=
SET /P "ANS2=ENTER PIXEL HEIGHT: "
IF "%ANS2%" LEQ "1" (
    ECHO VALUE MUST BE A NUMBER GREATER THAN 1
    ECHO=
    PAUSE
    GOTO REDO2
)

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:GET_IMG_SIZE
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FOR /F "TOKENS=*" %%A IN ('identify -format "%%[fx:w]x%%[fx:h]" "*.%FILEIN%"') DO SET "INSIZE=%%A"
CLS
IF "%FILEIN%"=="ico" IF "%FILEOUT%"=="ico" GOTO SHRINK_IMG
IF "%INSIZE%" LSS "%ANS1%x%ANS2%" GOTO SHRINK_IMG

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:ENLARGE_IMG
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SET /P "SHARP=ENTER A SHARPENING AMOUNT BETWEEN: 0.0 - 3.0: "
CLS
SET CNT=0
FOR %%G IN (*.%FILEIN%) DO (
        SET /A CNT+=1
        ECHO [ #!CNT! ] %%~nxG
        %MOGRIFY% -monitor -path Output/ -filter Triangle -define filter:support=2 ^
        -sharpen 0x%SHARP%^^ -resize %ANS1%x%ANS2% -alpha on -background none ^
        -interlace none -colorspace sRGB -format %FILEOUT% "*.%FILEIN%[0]"
    )
)

SET DID_IT_WORK=%ERRORLEVEL%
GOTO CHECK

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:SHRINK_IMG
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SET CNT=0
FOR %%G IN (*.%FILEIN%) DO (
        SET /A CNT+=1
        ECHO [ #!CNT! ] %%~nxG
        %MOGRIFY% -monitor -path Output/ -resize %ANS1%x%ANS2% ^
        -alpha off -background none -format %FILEOUT% "*.%FILEIN%[0]"
    )
)

SET DID_IT_WORK=%ERRORLEVEL%
GOTO CHECK

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:RUN_OTHER
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REM RUN MOGRIFY ON ALL PNG FILES IN SCRIPT'S WORKING DIRECTORY
SET CNT=0
FOR %%G IN (*.%FILEIN%) DO (
    FOR /F "TOKENS=*" %%H IN ('identify -format "%%[fx:w]x%%[fx:h]" "*.%FILEIN%"') DO (
        SET /A CNT+=1
        ECHO [ #!CNT! ] %%~nxG
        ECHO=
        %MOGRIFY% -monitor -path Output/ -filter Triangle -define filter:support=2 ^
        -thumbnail %%H -unsharp 0.25x0.08+8.3+0.045 -dither None -posterize 136 ^
        -quality 82 -define jpeg:fancy-upsampling=off -define png:compression-filter=5 ^
        -define png:compression-level=9 -define png:compression-strategy=1 -define png:exclude-chunk=all ^
        -interlace none -colorspace sRGB -format %FILEOUT% "*.%FILEIN%"
    )
)

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:CHECK
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REM CHECK IF MOGRIFY WAS SUCCESSFUL
CLS
IF %DID_IT_WORK% EQU 1 GOTO THROW_ERROR
COLOR 03
ECHO Mogrify Completed
ECHO=
PAUSE
REM OPEN NEWLY CREATED FILES
FOR %%G IN (Output\*.%FILEOUT%) DO START "" "%%~fG"
GOTO :EOF

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:THROW_ERROR
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REM MOGRIFY WAS UNSUCCESSFUL
CLS
ECHO Error: Mogrify failed to convert the file^(s^). & ECHO=
ECHO Please fix the error before re-running this script.
ECHO=
PAUSE
START "" /MAX %EDITOR% "%0"