keras-team/keras · error · ValueError

left_padding must be >= 0. Received: left_padding={left_padd

Error message

left_padding must be >= 0. Received: left_padding={left_padding}

What it means

Error "left_padding must be >= 0. Received: left_padding={left_padding}" thrown in keras-team/keras.

Source

Thrown at keras/src/ops/image.py:1701

                raise ValueError(
                    "bottom_padding must be >= 0. "
                    f"Received: bottom_padding={bottom_padding}"
                )
            if target_height < 0:
                raise ValueError(
                    "target_height must be >= 0. "
                    f"Received: target_height={target_height}"
                )

        if width is not None:
            left_padding = self.left_padding
            right_padding = self.right_padding
            if left_padding is None:
                left_padding = target_width - width - right_padding
            if right_padding is None:
                right_padding = target_width - width - left_padding
            if left_padding < 0:
                raise ValueError(
                    "left_padding must be >= 0. "
                    f"Received: left_padding={left_padding}"
                )
            if right_padding < 0:
                raise ValueError(
                    "right_padding must be >= 0. "
                    f"Received: right_padding={right_padding}"
                )
            if target_width < 0:
                raise ValueError(
                    "target_width must be >= 0. "
                    f"Received: target_width={target_width}"
                )

        images_shape[height_axis] = target_height
        images_shape[width_axis] = target_width
        return KerasTensor(shape=images_shape, dtype=images.dtype)

View on GitHub (pinned to 7a34a03db6)

When it happens

Trigger: Thrown at keras/src/ops/image.py:1701 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of keras-team/keras@7a34a03db6 (2026-08-25). Data as JSON: /api/errors/efdc35bec1367867. Report an issue: GitHub.