join_bmp_masks_with_template.py

from PIL import Image

Image.MAX_IMAGE_PIXELS = 933120000



def join_masks_with_template(filename_mask, filename_template, filename_output, center=True):

    

    from PIL import Image

    img = Image.open(filename_mask)


    background = Image.open(filename_template)


    

    
    bg_size = background.size
    Image.MAX_IMAGE_PIXELS = 10*bg_size[0]*bg_size[1]
    mask_size = img.size
    corner = (int((bg_size[0] - mask_size[0])/2),int( (bg_size[1] - mask_size[1])/2))

    print("Template size is ",bg_size, ". Mask size is ",mask_size,".")
    
    if center:
        print("Centering the mask. Corner is ",corner)
    else:
        corner = (0,0)

    background.paste(img, corner, img)

    # Force conversion to grayscale
    background = background.convert('L')


    print("Saving to ", filename_output)
    background.save(filename_output)

    return background


filename_template = 'gs_bmp_fiducials_10x10mm_1um.png'

filename_mask = 'mask_data.png'
filename_output = "mask_with_fiducials_10x10_8bit.bmp"

image = join_masks_with_template(filename_mask, filename_template, filename_output)