Home modified by ashutosh

ashutosh — Mon, 27 Jun 2022 12:41:21 -0000

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-Welcome to your wiki!
+Welcome to the **keras2cpp multithreading image segmentation** wiki!

-This is the default page, edit it as you see fit. To add a new page simply reference it within brackets, e.g.: [SamplePage].
+Train your image segmentation model in keras and then Convert your keras model into C / C++ /vc++ with multithreading to use directly with your c/c++ program. Very easy to use. Only contains 3 files

-The wiki uses [Markdown](/p/keras2cpp-multithreading/wiki/markdown_syntax/) syntax.
+**1.  keras2cpp.py **- python code to convert your keras model into two text files

-[[members limit=20]]
-[[download_button]]
+**2. keras.cpp and keras.h files** to include it into your c/c++ program and inference your model.
+
+
+**Keras2cpp.py**  - just import or copy and paste the function - save_keras_model_as_text .....
+
+`from keras2cpp import * `
+
+`#load model`
+
+`model=keras.models.load_model('mymodel.h5')`
+
+`#save model into two text files`
+
+`save_keras_model_as_text(model, open('modeltext.txt', 'w') )`
+
+`save_keras_model_as_text(model, open('modellayersonlytext.txt', 'w') , noweight=True)``
+
+
+**Now, Inference model into c/c++**
+
+1. include "Keras.h" file 
+
+2. read an image and convert it into keras format. In example file, we read a ppm image in keras format. If we are using a library like opencv, cximage, cimg etc.. we convert image into our keras format.
+a sample code below - 
+
+
+`unsigned int r,g,b;`
+   
+   `int *img = new int[h*w*3];`
+
+   `int *img_r = img, *img_g =&img[h*w], *img_b=&img[2*h*w];`
+
+      `int k=0;`
+
+      `for (int y = 0; y < h; y++) {`
+
+         `for (int x = 0; x < w;x++) {`
+
+            `read r, g, b`
+
+            `*img_r++ =r; *img_g++ =g; *img_b++ = b;`
+         `}`
+        
+      `}`
+   
+3.  call ExecuteKerasSegmentation(img, h,w, 3, modelfile,weightfile)
+
+`char *modelfile ="C:\\bcrpath\\modellayersonlytext.txt";  `
+
+ `char *weightfile="C:\\bcrpath\\modeltext.txt";`
+
+ `int *result = ExecuteKerasSegmentation(img, h, w, 3, modelfile, weightfile);`
+
+   `delete img;`
+
+   `if(result==NULL)`
+   `{`
+       `AfxMessageBox("Keras error returned null");`
+
+       `return;`
+   `}`
+
+   `save_image_pgm("C:\\bcrpath\\segmentation_map.pgm",result,h,w,127);`
+
+
+the result is a 1d array of 0s and 1s which store segmentation map. The value at 2D point (x,y) can be accessed as result[y*w+x]. In above code, we are saving result in an image file (pgm). For any library, we can use their setpixelcolor/setpixel functions in loop or createfromarray function to convert this array into that library object.
+
+
+
+Note - Irfanview can display ppm /pgm  image files.
+
+
+
+
+

Home modified by ashutosh

ashutosh — Mon, 27 Jun 2022 12:41:20 -0000

Welcome to your wiki!

This is the default page, edit it as you see fit. To add a new page simply reference it within brackets, e.g.: [SamplePage].

The wiki uses Markdown syntax.

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Home modified by ashutosh

Home modified by ashutosh

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