Cómo agregar un fondo negro a una imagen

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Este wikiHow te enseñará a convertir el fondo simple de una foto en un fondo negro. Puedes hacerlo usando el editor de fotos en línea Pixlr o Paint 3D si tienes una computadora Windows. También puedes usar el programa gratuito GIMP 2 para cortar un sujeto de una foto y pegarlo en un fondo completamente negro.

Método 1
Método 1 de 3:

Usar Pixlr

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    Ve a https://pixlr.com/editor/ en el navegador de tu computadora.
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    Se encuentra en medio de la página. Al hacerlo, se abrirá una ventana.
  3. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/2c\/Add-a-Black-Background-to-a-Picture-Step-3-Version-3.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-3-Version-3.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/2c\/Add-a-Black-Background-to-a-Picture-Step-3-Version-3.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-3-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en la imagen a la que quieras agregarle un fondo negro.
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    Se encuentra en la esquina inferior derecha de la ventana. La imagen se subirá a Pixlr.
  5. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/32\/Add-a-Black-Background-to-a-Picture-Step-5-Version-3.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-5-Version-3.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/32\/Add-a-Black-Background-to-a-Picture-Step-5-Version-3.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-5-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Este icono en forma de cubeta se encuentra en la columna de opciones de dibujo que se encuentra en el lado izquierdo de la ventana.
    • También puedes presionar G en el teclado.
  6. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/5d\/Add-a-Black-Background-to-a-Picture-Step-6-Version-3.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-6-Version-3.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5d\/Add-a-Black-Background-to-a-Picture-Step-6-Version-3.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-6-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en el cuadrado negro en la parte inferior de la columna de opciones de dibujo.
  7. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/7\/7c\/Add-a-Black-Background-to-a-Picture-Step-7-Version-3.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-7-Version-3.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/7c\/Add-a-Black-Background-to-a-Picture-Step-7-Version-3.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-7-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en la casilla desplegable de “Tolerancia” en la parte superior de la página de Pixlr, luego súbela o bájala.
    • La tolerancia determina la precisión del color. Una mayor tolerancia significa que se coloreará más de la foto con un solo clic, mientras que una menor tolerancia es ideal para fotos con fondos de un solo color.
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    Se tornará negra.
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    Si una parte demasiado grande de la foto se torna negra, deshaz el paso y baja la tolerancia; si no se pinta lo suficiente de negro, deshaz el paso y aumenta la tolerancia.
    • Puedes deshacer pasos presionando Ctrl + Z (o Comando + Z en una Mac).
  10. 10
    Sigue haciendo clic en el fondo hasta que todo esté negro. Esto supondrá un poco de ensayo y error, así que sigue ajustando la tolerancia a medida que avances, si es necesario.
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    Se encuentra en el lado superior izquierdo de la ventana de Pixlr. Aparecerá un menú desplegable.
    • Si vas a usar una Mac, asegúrate de hacer clic en Archivo en la página web de Pixlr y no en la esquina superior izquierda de la pantalla de una Mac.
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    Esta opción se encuentra en el menú desplegable. Se abrirá una ventana.
  13. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/3b\/Add-a-Black-Background-to-a-Picture-Step-13.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-13.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/3b\/Add-a-Black-Background-to-a-Picture-Step-13.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-13.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Se encuentra en el lado izquierdo de la ventana.
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    Encontrarás esta opción en la esquina inferior derecha de la ventana.
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    Haz clic en una carpeta de la computadora en donde quieras guardar la imagen.
  16. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/1\/1a\/Add-a-Black-Background-to-a-Picture-Step-16.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-16.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/1a\/Add-a-Black-Background-to-a-Picture-Step-16.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-16.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Se encuentra en la esquina inferior derecha de la ventana. Tu imagen se guardará con un fondo negro.
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Método 2
Método 2 de 3:

Usar Paint 3D

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  1. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/c\/cb\/Add-a-Black-Background-to-a-Picture-Step-17.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-17.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/cb\/Add-a-Black-Background-to-a-Picture-Step-17.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-17.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en el logotipo de Windows en la esquina inferior izquierda de la ventana. Siempre y cuando tengas una computadora con Windows 10 por lo menos con Creators Update instalado, puedes usar Paint 3D para editar fotos.
  2. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/1\/11\/Add-a-Black-Background-to-a-Picture-Step-18.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-18.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/11\/Add-a-Black-Background-to-a-Picture-Step-18.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-18.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Esto buscará el programa de Paint 3D en la computadora.
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    Se encuentra en la parte superior de la ventana de Inicio. Se abrirá Paint 3D.
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    Este icono en forma de carpeta se encuentra en medio de la ventana de Paint 3D.
  5. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/32\/Add-a-Black-Background-to-a-Picture-Step-21.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-21.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/32\/Add-a-Black-Background-to-a-Picture-Step-21.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-21.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Se encuentra cerca de la parte superior de la página.
  6. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/4\/4e\/Add-a-Black-Background-to-a-Picture-Step-22.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-22.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/4e\/Add-a-Black-Background-to-a-Picture-Step-22.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-22.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Ve a la carpeta en donde se ubique la imagen, luego haz clic en ella.
  7. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/2\/2b\/Add-a-Black-Background-to-a-Picture-Step-23.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-23.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/2b\/Add-a-Black-Background-to-a-Picture-Step-23.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-23.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Se encuentra en la esquina inferior derecha de la ventana. La imagen aparecerá en Paint 3D.
  8. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/e\/e6\/Add-a-Black-Background-to-a-Picture-Step-24.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-24.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e6\/Add-a-Black-Background-to-a-Picture-Step-24.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-24.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Este icono en forma de cubeta se encuentra en el lado derecho de la ventana de Paint 3D, justo por debajo del encabezado “Marcador”.
    • Si no ves esta opción, asegúrate de estar en la pestaña de trabajo haciendo clic en el icono de pincel en la parte superior de la ventana.
  9. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/d\/d8\/Add-a-Black-Background-to-a-Picture-Step-25.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-25.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d8\/Add-a-Black-Background-to-a-Picture-Step-25.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-25.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en la casilla negra en la sección inferior derecha de la ventana.
  10. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b8\/Add-a-Black-Background-to-a-Picture-Step-26.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-26.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b8\/Add-a-Black-Background-to-a-Picture-Step-26.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-26.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Esta se tornará negra.
    • Si una parte demasiado grande de la foto se torna negra, presiona Ctrl + Z para deshacer la acción, luego arrastra el deslizador de “Tolerancia” que se encuentra en el lado derecho de la página a la izquierda.
  11. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/0\/05\/Add-a-Black-Background-to-a-Picture-Step-27.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-27.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/05\/Add-a-Black-Background-to-a-Picture-Step-27.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-27.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Esto podría requerir un poco de ensayo y error, así que sigue deshaciendo cambios que no te gusten y ajustando la “Tolerancia” cuando sea necesario.
  12. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b1\/Add-a-Black-Background-to-a-Picture-Step-28.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-28.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b1\/Add-a-Black-Background-to-a-Picture-Step-28.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-28.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Presiona Ctrl + S para hacerlo. El fondo de la imagen ahora será negro en lugar del color anterior.
    • Si quieres conservar la imagen original, primero cópiala seleccionándola y presionando Ctrl + C , y luego pégala en otro lado presionando Ctrl + V .
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Método 3
Método 3 de 3:

Usar GIMP 2

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  1. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/59\/Add-a-Black-Background-to-a-Picture-Step-29.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-29.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/59\/Add-a-Black-Background-to-a-Picture-Step-29.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-29.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Este icono de aplicación se parece a un zorro masticando un pincel. Debes ver que la ventana de GIMP 2 se abre.
    • Si no tienes GIMP 2 instalado, puedes descargarlo de la página oficial.
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    Se encuentra en la esquina superior izquierda de la ventana. Aparecerá un menú desplegable.
  3. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b1\/Add-a-Black-Background-to-a-Picture-Step-31.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-31.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b1\/Add-a-Black-Background-to-a-Picture-Step-31.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-31.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Esta opción se encuentra en el menú desplegable de Archivo .
  4. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/a\/a4\/Add-a-Black-Background-to-a-Picture-Step-32.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-32.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a4\/Add-a-Black-Background-to-a-Picture-Step-32.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-32.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en la imagen que quieras abrir.
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    Se encuentra en la esquina inferior derecha de la ventana. La imagen se abrirá en GIMP 2.
    • Quizás se te pedirá que conviertas los elementos de color de la foto. De ser así, solo haz clic en Conservar para seguir.
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    Esto abrirá la herramienta “Selección libre”, la cual te permite dibujar un contorno alrededor del sujeto.
    • Si esto no funciona, haz clic en la pestaña Herramientas , selecciona Herramientas de selección y haz clic en Selección libre .
  7. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/b\/b1\/Add-a-Black-Background-to-a-Picture-Step-35.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-35.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b1\/Add-a-Black-Background-to-a-Picture-Step-35.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-35.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Asegúrate de dibujar lo más cerca posible del contorno real del sujeto, dado que lo cortarás y pegarás sobre un fondo negro.
    • El inicio del contorno debe conectarse con el final del mismo.
  8. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/8\/88\/Add-a-Black-Background-to-a-Picture-Step-36.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-36.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/88\/Add-a-Black-Background-to-a-Picture-Step-36.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-36.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Presiona ya sea Ctrl + C (Windows) o Comando + C (Mac).
  9. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/e\/e8\/Add-a-Black-Background-to-a-Picture-Step-37.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-37.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e8\/Add-a-Black-Background-to-a-Picture-Step-37.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-37.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en Archivo , haz clic en Nuevo... en el menú desplegable y luego haz lo siguiente:
    • Haz clic en el encabezado Opciones avanzadas .
    • Haz clic en la casilla desplegable “Rellenar con”.
    • Haz clic en Color de primer plano en el menú desplegable.
    • Haz clic en Aceptar .
  10. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/3\/36\/Add-a-Black-Background-to-a-Picture-Step-38.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-38.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/36\/Add-a-Black-Background-to-a-Picture-Step-38.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-38.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Presiona Ctrl + V (o Comando + V en una Mac) para hacerlo. Deberás ver el sujeto copiado en medio del fondo negro.
  11. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/5b\/Add-a-Black-Background-to-a-Picture-Step-39.jpg\/v4-460px-Add-a-Black-Background-to-a-Picture-Step-39.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5b\/Add-a-Black-Background-to-a-Picture-Step-39.jpg\/v4-728px-Add-a-Black-Background-to-a-Picture-Step-39.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    Haz clic en Archivo , haz clic en Exportar como... , agrega un título en la parte superior de la ventana, haz clic en Exportar , asegúrate de que la casilla “Guardar color de fondo” esté marcada y vuelve a hacer clic en Exportar . Esto guardará la foto con su fondo negro.
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Consejos

  • El método con GIMP 2 también puede utilizarse para colocar sujetos encima de otras fotos con el fin de crear escenas divertidas o extrañas.
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Advertencias

  • No puedes cambiar los fondos de fotos con fondos complejos usando Pixlr ni Paint 3D.
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