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RapidOcr.ahk
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RapidOcr.ahk
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/************************************************************************
* @description [RapidOcrOnnx](https://github.com/RapidAI/RapidOcrOnnx)
* A cross platform OCR Library based on PaddleOCR & OnnxRuntime
* @author thqby, RapidAI
* @date 2024/08/07
* @version 1.0.2
* @license Apache-2.0
***********************************************************************/
class RapidOcr {
ptr := 0
/**
* @param {Map|Object} config Set det, rec, cls model location path, keys.txt path, thread number.
* @param {String} [config.models] dir of model files
* @param {String} [config.det] model file name of det
* @param {String} [config.rec] model file name of rec
* @param {String} [config.keys] keys file name
* @param {String} [config.cls] model file name of cls
* @param {Integer} [config.numThread] The thread number, default: 2
* @param {String} dllpath The path of RapidOcrOnnx.dll
* @example
* param := RapidOcr.OcrParam()
* param.doAngle := false ;, param.maxSideLen := 300
* ocr := RapidOcr({ models: A_ScriptDir '\models' })
* MsgBox ocr.ocr_from_file('1.jpg', param)
*/
__New(config?, dllpath?) {
static init := 0
if (!init) {
init := DllCall('LoadLibrary', 'str', dllpath ?? A_LineFile '\..\' (A_PtrSize * 8) 'bit\RapidOcrOnnx.dll', 'ptr')
if (!init)
Throw OSError()
}
if !IsSet(config)
config := { models: A_LineFile '\..\models' }
else if !HasProp(config, 'models')
config.models := A_LineFile '\..\models'
if !FileExist(config.models)
config.models := unset
det_model := cls_model := rec_model := keys_dict := '', numThread := 2
for k, v in (config is Map ? config : config.OwnProps()) {
switch k, false {
case 'det', 'cls', 'rec': %k%_model := v
case 'keys', 'dict': keys_dict := v
case 'det_model', 'cls_model', 'rec_model', 'keys_dict', 'numThread': %k% := v
case 'models', 'modelpath':
if !(v ~= '[/\\]$')
v .= '\'
if !keys_dict {
loop files v '*.txt'
if A_LoopFileName ~= 'i)_(keys|dict)[_.]' {
keys_dict := A_LoopFileFullPath
break
}
}
loop files v '*.onnx' {
if RegExMatch(A_LoopFileName, 'i)_(det|cls|rec)[_.]', &m) && !%m[1]%_model
%m[1]%_model := A_LoopFileFullPath
} until det_model && cls_model && rec_model
}
}
for k in ['keys_dict', 'det_model', 'cls_model', 'rec_model']
if !%k% {
if k != 'cls_model'
Throw ValueError('No value is specified: ' k)
} else if !FileExist(%k%)
Throw TargetError('file "' k '" does not exist')
this.ptr := DllCall('RapidOcrOnnx\OcrInit', 'str', det_model, 'str', cls_model, 'str', rec_model, 'str', keys_dict, 'int', numThread, 'ptr')
}
__Delete() => this.ptr && DllCall('RapidOcrOnnx\OcrDestroy', 'ptr', this)
static __cb(i) {
static cbs := [
{ ptr: CallbackCreate(get_text), __Delete: this => CallbackFree(this.ptr) },
{ ptr: CallbackCreate(get_result), __Delete: this => CallbackFree(this.ptr) },
]
return cbs[i]
get_text(userdata, ptext, presult) => %ObjFromPtrAddRef(userdata)% := StrGet(ptext, 'utf-8')
get_result(userdata, ptext, presult) {
result := %ObjFromPtrAddRef(userdata)% := RapidOcr.OcrResult(presult)
result.text := StrGet(ptext, 'utf-8')
return result
}
}
; opencv4.8.0 Mat
ocr_from_mat(mat, param := 0, allresult := false) => DllCall('RapidOcrOnnx\OcrDetectMat', 'ptr', this, 'ptr', mat, 'ptr', param, 'ptr', RapidOcr.__cb(2 - !allresult), 'ptr', ObjPtr(&res)) ? res : ''
; path of pic
ocr_from_file(picpath, param := 0, allresult := false) => DllCall('RapidOcrOnnx\OcrDetectFile', 'ptr', this, 'astr', picpath, 'ptr', param, 'ptr', RapidOcr.__cb(2 - !allresult), 'ptr', ObjPtr(&res)) ? res : ''
; Image binary data
ocr_from_binary(data, size, param := 0, allresult := false) => DllCall('RapidOcrOnnx\OcrDetectBinary', 'ptr', this, 'ptr', data, 'uptr', size, 'ptr', param, 'ptr', RapidOcr.__cb(2 - !allresult), 'ptr', ObjPtr(&res)) ? res : ''
; `struct BITMAP_DATA { void *bits; uint pitch; int width, height, bytespixel;};`
ocr_from_bitmapdata(data, param := 0, allresult := false) => DllCall('RapidOcrOnnx\OcrDetectBitmapData', 'ptr', this, 'ptr', data, 'ptr', param, 'ptr', RapidOcr.__cb(2 - !allresult), 'ptr', ObjPtr(&res)) ? res : ''
class OcrParam extends Buffer {
__New(param?) {
super.__New(42, 0)
p := NumPut('int', 50, 'int', 1024, 'float', 0.6, 'float', 0.3, 'float', 2.0, this)
if !IsSet(param)
return NumPut('int', 1, 'int', 1, p)
for k, v in (param is Map ? param : param.OwnProps())
if this.Base.HasOwnProp(k)
this.%k% := v
}
; default: 50
padding {
get => NumGet(this, 0, 'int')
set => NumPut('int', Value, this, 0)
}
; default: 1024
maxSideLen {
get => NumGet(this, 4, 'int')
set => NumPut('int', Value, this, 4)
}
; default: 0.5
boxScoreThresh {
get => NumGet(this, 8, 'float')
set => NumPut('float', Value, this, 8)
}
; default: 0.3
boxThresh {
get => NumGet(this, 12, 'float')
set => NumPut('float', Value, this, 12)
}
; default: 1.6
unClipRatio {
get => NumGet(this, 16, 'float')
set => NumPut('float', Value, this, 16)
}
; default: false
doAngle {
get => NumGet(this, 20, 'int')
set => NumPut('int', Value, this, 20)
}
; default: false
mostAngle {
get => NumGet(this, 24, 'int')
set => NumPut('int', Value, this, 24)
}
; Output path of image with the boxes
outputPath {
get => StrGet(NumGet(this, 24 + A_PtrSize, 'ptr') || StrPtr(''), 'cp0')
set => (StrPut(Value, this.__outputbuf := Buffer(StrPut(Value, 'cp0')), 'cp0'), NumPut('ptr', this.__outputbuf.Ptr, this, 24 + A_PtrSize))
}
}
class OcrResult extends Array {
__New(ptr) {
this.dbNetTime := NumGet(ptr, 'double')
this.detectTime := NumGet(ptr, 8, 'double')
read_vector(this, &ptr += 16, read_textblock)
align(ptr, begin, to_align) => begin + ((ptr - begin + --to_align) & ~to_align)
read_textblock(&ptr, begin := ptr) => {
boxPoint: read_vector([], &ptr, read_point),
boxScore: read_float(&ptr),
angleIndex: read_int(&ptr),
angleScore: read_float(&ptr),
angleTime: read_double(&ptr := align(ptr, begin, 8)),
text: read_string(&ptr),
charScores: read_vector([], &ptr, read_float),
crnnTime: read_double(&ptr := align(ptr, begin, 8)),
blockTime: read_double(&ptr)
}
read_double(&ptr) => (v := NumGet(ptr, 'double'), ptr += 8, v)
read_float(&ptr) => (v := NumGet(ptr, 'float'), ptr += 4, v)
read_int(&ptr) => (v := NumGet(ptr, 'int'), ptr += 4, v)
read_point(&ptr) => { x: read_int(&ptr), y: read_int(&ptr) }
read_string(&ptr) {
static size := 2 * A_PtrSize + 16
sz := NumGet(ptr + 16, 'uptr'), p := sz < 16 ? ptr : NumGet(ptr, 'ptr'), ptr += size
s := StrGet(p, sz, 'utf-8')
return s
}
read_vector(arr, &ptr, read_element) {
static size := 3 * A_PtrSize
pend := NumGet(ptr, A_PtrSize, 'ptr'), p := NumGet(ptr, 'ptr'), ptr += size
while p < pend
arr.Push(read_element(&p))
return arr
}
}
}
}