# Python version 3.10 generating a error when trying to add a watermark to an image

**URL:** <https://discuss.python.org/t/python-version-3-10-generating-a-error-when-trying-to-add-a-watermark-to-an-image/15703>\
**Category:** Python Help\
**Tags:** help\
**Created:** [May 12, 2022, 3:00pm UTC](https://discuss.python.org/t/python-version-3-10-generating-a-error-when-trying-to-add-a-watermark-to-an-image/15703 "2022-05-12T15:00:20Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![fredericomattos](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/fredericomattos/32/7219_2.png) [@fredericomattos](https://discuss.python.org/u/fredericomattos)\
**Post date:** [May 12, 2022, 3:00pm UTC](https://discuss.python.org/t/python-version-3-10-generating-a-error-when-trying-to-add-a-watermark-to-an-image/15703/1 "2022-05-12T15:00:20Z")

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Note: all 3.9 versions run the code perfectly creating the watermarked image.

I created this project to fit a watermark cross that perfectly fits the size of the image, but in this line of code:

```auto
paste_mask = watermark.split()[3].point(lambda i: i * TRANSPARENCY / 100.)

```

It generating this error:

```auto
File "c:\Users\Computador\Desktop\Python\Watermark.py", line 29, in watermark_with_transparency
paste_mask = watermark.split()[3].point(lambda i: i * TRANSPARENCY / 100.)
File "C:\Users\Computador\AppData\Local\Programs\Python\Python310\lib\site-packages\PIL\Image.py", line 1723, in point
return self._new(self.im.point(lut, mode))
TypeError: 'float' object cannot be interpreted as an integer

```

The complete code is:

```auto
from PIL import Image

def watermark_with_transparency(input_image_path,
                                output_image_path,
                                watermark_image_path):
    TRANSPARENCY = 10
    angle = 30
    base_image = Image.open(input_image_path)
    w_img, h_img = base_image.size
    basewidth = w_img
    watermark = Image.open(watermark_image_path)
    watermark = watermark.rotate(angle, expand=True)
    wpercent = (basewidth / float(watermark.size[0]))
    hpercent = h_img / float(watermark.size[1])
    if wpercent < hpercent:
        hsize = int((float(watermark.size[1]) * float(wpercent)))
        watermark = watermark.resize((basewidth, hsize), Image.ANTIALIAS)
    else:
        wsize = int((float(watermark.size[0]) * float(hpercent)))
        watermark = watermark.resize((wsize, h_img), Image.ANTIALIAS)
    w_logo, h_logo = watermark.size
    center_y = int(h_img / 2)
    center_x = int(w_img / 2)
    top_y = center_y - int(h_logo / 2)
    left_x = center_x - int(w_logo / 2)
    if watermark.mode != 'RGBA':
        alpha = Image.new('L', (w_img, h_img), 255)
        watermark.putalpha(alpha)
    paste_mask = watermark.split()[3].point(lambda i: i * TRANSPARENCY / 100.)
    base_image.paste(watermark, (left_x, top_y), mask=paste_mask)
    base_image.save(output_image_path)

```

The model in the image is ok and the values in my view are correct, what should i modify to work in this new python version?

---

<div class="post-metadata">

**Author:** ![moosemaimer](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/moosemaimer/32/15091_2.png) [@moosemaimer](https://discuss.python.org/u/moosemaimer)\
**Post date:** [March 5, 2024, 4:42pm UTC](https://discuss.python.org/t/python-version-3-10-generating-a-error-when-trying-to-add-a-watermark-to-an-image/15703/3 "2024-03-05T16:42:59Z")

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Bit of an old topic, but I am seeing this:

```python
def point(self, lut, mode=None):
        """
        :param mode: Output mode (default is same as input). In the
           current version, this can only be used if the source image
           has mode "L" or "P", and the output has mode "1" or the
           source image mode is "I" and the output mode is "L".
        """
        if self.mode == "F":
            # FIXME: _imaging returns a confusing error message for this case
            msg = "point operation not supported for this mode"
            raise ValueError(msg)

        if mode != "F":
            lut = [round(i) for i in lut]

```

so it looks like there are two conflicting checks, where the first throws an error if it’s in “F” mode, and the second checks if it’s not in “F” mode and converts the LUT to integers. So maybe you just have to add a conversion to `int` in the lambda.

---

<div class="post-metadata">

**Author:** ![sharon-yelenik](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/sharon-yelenik/32/18344_2.png) [@sharon-yelenik](https://discuss.python.org/u/sharon-yelenik)\
**Post date:** [March 17, 2024, 10:08pm UTC](https://discuss.python.org/t/python-version-3-10-generating-a-error-when-trying-to-add-a-watermark-to-an-image/15703/5 "2024-03-17T22:08:43Z")

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You can use Cloudinary’s Python libraries to watermark your images.